Is mcp-guardian safe to use?

mcp-guardian has a security risk score of 100/100 (CRITICAL risk). Our security analysis detected 259 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of mcp-guardian?

Based on our automated security analysis, mcp-guardian presents critical risk level. The extension is analyzed for malware patterns, secret exposure, network communications, permissions, and supply chain vulnerabilities.

How is the security score calculated?

Risky Plugins calculates security scores using weighted categories: severity of findings (25 points max), malware detections (35 points), secret exposure (28 points), network communications (10 points), and obfuscation (10 points). Scores range from 0-100, with higher scores indicating greater risk.

What does CRITICAL, HIGH, MEDIUM, LOW, MINIMAL risk mean?

CRITICAL (80-100): Severe security issues like malware. HIGH (60-79): Significant vulnerabilities. MEDIUM (40-59): Moderate security concerns. LOW (20-39): Minor issues. MINIMAL (0-19): Very low risk. Always review findings before installing any extension.

Is "mcp-guardian" on MCP Registry Safe to Install?

Name: mcp-guardian
Availability: InStock
Author: wfmedia

wfmedia · mcp · v2.4.0

MCP security scanner - detect prompt injection in tool descriptions

Risk Assessment

Analyzed

100

out of 100

CRITICAL

259 security findings detected across all analyzers

MCP server analyzed for tool poisoning, prompt injection, and data exfiltration

Severity Breakdown

Critical

High

190

Medium

Low

Info

Finding Categories

Malware Signatures

Secrets

174

IoC Indicators

YARA Rules Matched

10 rules(44 hits)

postinstall file manipulation postinstall crypto operations postinstall network communication UsingCommandLineArguments credential ssh keys credential aws credentials postinstall obfuscation credential env files postinstall registry modification postinstall system command

MCP Server Analysis

MCP servers expose tools and resources to AI assistants. Unlike browser extensions, they run as standalone processes with direct system access. Tool definitions are analyzed for prompt injection, data exfiltration, and tool poisoning patterns.

About This Extension

MCP security scanner - detect prompt injection in tool descriptions

Detailed Findings

82 total

YARA Rule Matches

10 rules

Indicators of Compromise

Network indicators, suspicious strings, and potential IoCs extracted during analysis

URLs

121

IP Addresses

Domains

Strings

174

All Indicators · 174

URL

detected URL: https://github.com/sponsors/epoberezkin

XIOC detected URL: https://github.com/sponsors/epoberezkin

extracted_from_files

URL

detected URL: https://registry.npmjs.org/zod/-/zod-3.25.76.tgz

XIOC detected URL: https://registry.npmjs.org/zod/-/zod-3.25.76.tgz

extracted_from_files

URL

detected URL: https://github.com/sponsors/colinhacks

XIOC detected URL: https://github.com/sponsors/colinhacks

extracted_from_files

URL

detected URL: https://github.com/alexandriashai/mcp-guardian.git

XIOC detected URL: https://github.com/alexandriashai/mcp-guardian.git

extracted_from_files

URL

detected URL: https://github.com/alexandriashai/mcp-guardian/issues

XIOC detected URL: https://github.com/alexandriashai/mcp-guardian/issues

extracted_from_files

URL

detected URL: https://registry.npmjs.org/side-channel-map/-/side-channel-map-1.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/side-channel-map/-/side-channel-map-1.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/type-is/-/type-is-2.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/vary/-/vary-1.1.2.tgz

XIOC detected URL: https://registry.npmjs.org/vary/-/vary-1.1.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/send/-/send-1.2.1.tgz

XIOC detected URL: https://registry.npmjs.org/send/-/send-1.2.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/serve-static/-/serve-static-2.2.1.tgz

XIOC detected URL: https://registry.npmjs.org/serve-static/-/serve-static-2.2.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz

XIOC detected URL: https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/side-channel/-/side-channel-1.1.0.tgz

XIOC detected URL: https://registry.npmjs.org/side-channel/-/side-channel-1.1.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/side-channel-list/-/side-channel-list-1.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/side-channel-list/-/side-channel-list-1.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz

XIOC detected URL: https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.7.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/qs/-/qs-6.15.0.tgz

XIOC detected URL: https://registry.npmjs.org/qs/-/qs-6.15.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz

XIOC detected URL: https://registry.npmjs.org/range-parser/-/range-parser-1.2.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/raw-body/-/raw-body-3.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/raw-body/-/raw-body-3.0.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/require-from-string/-/require-from-string-2.0.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/router/-/router-2.2.0.tgz

XIOC detected URL: https://registry.npmjs.org/router/-/router-2.2.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz

XIOC detected URL: https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.4.tgz

XIOC detected URL: https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.4.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz

XIOC detected URL: https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/once/-/once-1.4.0.tgz

XIOC detected URL: https://registry.npmjs.org/once/-/once-1.4.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz

XIOC detected URL: https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz

XIOC detected URL: https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.3.0.tgz

XIOC detected URL: https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-8.3.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/pkce-challenge/-/pkce-challenge-5.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/pkce-challenge/-/pkce-challenge-5.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-2.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-2.0.0.tgz

extracted_from_files

URL

detected URL: https://github.com/sponsors/sindresorhus

XIOC detected URL: https://github.com/sponsors/sindresorhus

extracted_from_files

URL

detected URL: https://registry.npmjs.org/mime-db/-/mime-db-1.54.0.tgz

XIOC detected URL: https://registry.npmjs.org/mime-db/-/mime-db-1.54.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/mime-types/-/mime-types-3.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/mime-types/-/mime-types-3.0.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/ms/-/ms-2.1.3.tgz

XIOC detected URL: https://registry.npmjs.org/ms/-/ms-2.1.3.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/negotiator/-/negotiator-1.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/negotiator/-/negotiator-1.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz

XIOC detected URL: https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/jose/-/jose-6.1.3.tgz

XIOC detected URL: https://registry.npmjs.org/jose/-/jose-6.1.3.tgz

extracted_from_files

URL

detected URL: https://github.com/sponsors/panva

XIOC detected URL: https://github.com/sponsors/panva

extracted_from_files

URL

detected URL: https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz

extracted_from_files

Domain

detected Domain: tool-pinning.d.ts.map

XIOC detected Domain: tool-pinning.d.ts.map

extracted_from_files

URL

detected URL: https://registry.npmjs.org/media-typer/-/media-typer-1.1.0.tgz

XIOC detected URL: https://registry.npmjs.org/media-typer/-/media-typer-1.1.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/hono/-/hono-4.11.9.tgz

XIOC detected URL: https://registry.npmjs.org/hono/-/hono-4.11.9.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.25.1.tgz

XIOC detected URL: https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.25.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/http-errors/-/http-errors-2.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/http-errors/-/http-errors-2.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.7.2.tgz

XIOC detected URL: https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.7.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz

XIOC detected URL: https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/ip-address/-/ip-address-10.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/ip-address/-/ip-address-10.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz

XIOC detected URL: https://registry.npmjs.org/ipaddr.js/-/ipaddr.js-1.9.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/is-promise/-/is-promise-4.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/is-promise/-/is-promise-4.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/fresh/-/fresh-2.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/fresh/-/fresh-2.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz

XIOC detected URL: https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz

XIOC detected URL: https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz

XIOC detected URL: https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz

XIOC detected URL: https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz

extracted_from_files

URL

detected URL: https://github.com/sponsors/express-rate-limit

XIOC detected URL: https://github.com/sponsors/express-rate-limit

extracted_from_files

URL

detected URL: https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz

XIOC detected URL: https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.0.tgz

XIOC detected URL: https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.0.tgz

extracted_from_files

URL

detected URL: https://github.com/sponsors/fastify

XIOC detected URL: https://github.com/sponsors/fastify

extracted_from_files

URL

detected URL: https://opencollective.com/fastify

XIOC detected URL: https://opencollective.com/fastify

extracted_from_files

URL

detected URL: https://registry.npmjs.org/finalhandler/-/finalhandler-2.1.1.tgz

XIOC detected URL: https://registry.npmjs.org/finalhandler/-/finalhandler-2.1.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz

XIOC detected URL: https://registry.npmjs.org/forwarded/-/forwarded-0.2.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz

XIOC detected URL: https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz

XIOC detected URL: https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/etag/-/etag-1.8.1.tgz

XIOC detected URL: https://registry.npmjs.org/etag/-/etag-1.8.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/eventsource/-/eventsource-3.0.7.tgz

XIOC detected URL: https://registry.npmjs.org/eventsource/-/eventsource-3.0.7.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/eventsource-parser/-/eventsource-parser-3.0.6.tgz

XIOC detected URL: https://registry.npmjs.org/eventsource-parser/-/eventsource-parser-3.0.6.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/express/-/express-5.2.1.tgz

XIOC detected URL: https://registry.npmjs.org/express/-/express-5.2.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/express-rate-limit/-/express-rate-limit-8.2.1.tgz

XIOC detected URL: https://registry.npmjs.org/express-rate-limit/-/express-rate-limit-8.2.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/debug/-/debug-4.4.3.tgz

XIOC detected URL: https://registry.npmjs.org/debug/-/debug-4.4.3.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/depd/-/depd-2.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/depd/-/depd-2.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz

XIOC detected URL: https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/encodeurl/-/encodeurl-2.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/encodeurl/-/encodeurl-2.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz

XIOC detected URL: https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz

extracted_from_files

URL

detected URL: https://github.com/sponsors/ljharb

XIOC detected URL: https://github.com/sponsors/ljharb

extracted_from_files

URL

detected URL: https://registry.npmjs.org/content-disposition/-/content-disposition-1.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/content-disposition/-/content-disposition-1.0.1.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz

XIOC detected URL: https://registry.npmjs.org/content-type/-/content-type-1.0.5.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.2.2.tgz

XIOC detected URL: https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.2.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz

XIOC detected URL: https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/json-schema-typed/-/json-schema-typed-8.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/json-schema-typed/-/json-schema-typed-8.0.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz

XIOC detected URL: https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/body-parser/-/body-parser-2.2.2.tgz

XIOC detected URL: https://registry.npmjs.org/body-parser/-/body-parser-2.2.2.tgz

extracted_from_files

URL

detected URL: https://opencollective.com/express

XIOC detected URL: https://opencollective.com/express

extracted_from_files

URL

detected URL: https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz

XIOC detected URL: https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz

XIOC detected URL: https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz

extracted_from_files

URL

detected URL: https://developer.microsoft.com/blog/protecting-against-indirect-injection-attacks-mcp

XIOC detected URL: https://developer.microsoft.com/blog/protecting-against-indirect-injection-attacks-mcp

extracted_from_files

URL

detected URL: https://unit42.paloaltonetworks.com/model-context-protocol-attack-vectors/

XIOC detected URL: https://unit42.paloaltonetworks.com/model-context-protocol-attack-vectors/

extracted_from_files

URL

detected URL: https://simonwillison.net/2025/Apr/9/mcp-prompt-injection/

XIOC detected URL: https://simonwillison.net/2025/Apr/9/mcp-prompt-injection/

extracted_from_files

URL

detected URL: https://registry.npmjs.org/@hono/node-server/-/node-server-1.19.9.tgz

XIOC detected URL: https://registry.npmjs.org/@hono/node-server/-/node-server-1.19.9.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.26.0.tgz

XIOC detected URL: https://registry.npmjs.org/@modelcontextprotocol/sdk/-/sdk-1.26.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz

XIOC detected URL: https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz

extracted_from_files

URL

detected URL: https://registry.npmjs.org/ajv/-/ajv-8.18.0.tgz

XIOC detected URL: https://registry.npmjs.org/ajv/-/ajv-8.18.0.tgz

extracted_from_files

URL

detected URL: https://raw.githubusercontent.com/alexandriashai/mcp-guardian/main/schemas/patterns.schema.json

XIOC detected URL: https://raw.githubusercontent.com/alexandriashai/mcp-guardian/main/schemas/patterns.schema.json

extracted_from_files

URL

detected URL: https://invariantlabs.ai/blog/mcp-security-notification-tool-poisoning-attacks)

XIOC detected URL: https://invariantlabs.ai/blog/mcp-security-notification-tool-poisoning-attacks)

extracted_from_files

URL

detected URL: https://developer.microsoft.com/blog/protecting-against-indirect-injection-attacks-mcp)

XIOC detected URL: https://developer.microsoft.com/blog/protecting-against-indirect-injection-attacks-mcp)

extracted_from_files

URL

detected URL: https://unit42.paloaltonetworks.com/model-context-protocol-attack-vectors/)

XIOC detected URL: https://unit42.paloaltonetworks.com/model-context-protocol-attack-vectors/)

extracted_from_files

URL

detected URL: https://simonwillison.net/2025/Apr/9/mcp-prompt-injection/)

XIOC detected URL: https://simonwillison.net/2025/Apr/9/mcp-prompt-injection/)

extracted_from_files

URL

detected URL: https://evil-analytics.example.com/collect

XIOC detected URL: https://evil-analytics.example.com/collect

extracted_from_files

URL

detected URL: https://invariantlabs.ai/blog/mcp-security-notification-tool-poisoning-attacks

XIOC detected URL: https://invariantlabs.ai/blog/mcp-security-notification-tool-poisoning-attacks

extracted_from_files

URL

detected URL: https://simonwillison.net)

XIOC detected URL: https://simonwillison.net)

extracted_from_files

URL

detected URL: https://raw.githubusercontent.com/oasis-tcs/sarif-spec/master/Schemata/sarif-schema-2.1.0.json

XIOC detected URL: https://raw.githubusercontent.com/oasis-tcs/sarif-spec/master/Schemata/sarif-schema-2.1.0.json

extracted_from_files

URL

detected URL: https://github.com/alexandriashai/mcp-guardian

XIOC detected URL: https://github.com/alexandriashai/mcp-guardian

extracted_from_files

URL

detected URL: https://raw.githubusercontent.com/alexandriashai/mcp-guardian/main/schemas/config.schema.json

XIOC detected URL: https://raw.githubusercontent.com/alexandriashai/mcp-guardian/main/schemas/config.schema.json

extracted_from_files

URL

detected URL: https://github.com/alexandriashai/mcp-guardian#configuration

XIOC detected URL: https://github.com/alexandriashai/mcp-guardian#configuration

extracted_from_files

Domain

detected Domain: developer.microsoft.com

XIOC detected Domain: developer.microsoft.com

extracted_from_files

Domain

detected Domain: registry.npmjs.org

XIOC detected Domain: registry.npmjs.org

extracted_from_files

Domain

detected Domain: opencollective.com

XIOC detected Domain: opencollective.com

extracted_from_files

URL

detected URL: https://invariantlabs.ai)

XIOC detected URL: https://invariantlabs.ai)

extracted_from_files

URL

detected URL: https://microsoft.com/security)

XIOC detected URL: https://microsoft.com/security)

extracted_from_files

URL

detected URL: https://unit42.paloaltonetworks.com)

XIOC detected URL: https://unit42.paloaltonetworks.com)

extracted_from_files

Domain

detected Domain: date.now

XIOC detected Domain: date.now

extracted_from_files

Domain

detected Domain: targetbackup.date

XIOC detected Domain: targetbackup.date

extracted_from_files

Domain

detected Domain: tools.map

XIOC detected Domain: tools.map

extracted_from_files

Domain

detected Domain: t.name

XIOC detected Domain: t.name

extracted_from_files

Domain

detected Domain: tool-pinning.js.map

XIOC detected Domain: tool-pinning.js.map

extracted_from_files

Domain

detected Domain: types.d.ts.map

XIOC detected Domain: types.d.ts.map

extracted_from_files

Domain

detected Domain: types.js.map

XIOC detected Domain: types.js.map

extracted_from_files

Domain

detected Domain: security-audit.d.ts.map

XIOC detected Domain: security-audit.d.ts.map

extracted_from_files

Domain

detected Domain: serverentry.tools

XIOC detected Domain: serverentry.tools

extracted_from_files

Domain

detected Domain: security-audit.js.map

XIOC detected Domain: security-audit.js.map

extracted_from_files

URL

detected URL: https://registry.npmjs.org/ajv-formats/-/ajv-formats-3.0.1.tgz

XIOC detected URL: https://registry.npmjs.org/ajv-formats/-/ajv-formats-3.0.1.tgz

extracted_from_files

Domain

detected Domain: obj.tools

XIOC detected Domain: obj.tools

extracted_from_files

Domain

detected Domain: legacy.tools

XIOC detected Domain: legacy.tools

extracted_from_files

Domain

detected Domain: manifest.d.ts.map

XIOC detected Domain: manifest.d.ts.map

extracted_from_files

Domain

detected Domain: response.tools.map

XIOC detected Domain: response.tools.map

extracted_from_files

Domain

detected Domain: manifest.js.map

XIOC detected Domain: manifest.js.map

extracted_from_files

Domain

detected Domain: patterns.d.ts.map

XIOC detected Domain: patterns.d.ts.map

extracted_from_files

Domain

detected Domain: patterns.map

XIOC detected Domain: patterns.map

extracted_from_files

Domain

detected Domain: phrases.map

XIOC detected Domain: phrases.map

extracted_from_files

Domain

detected Domain: patterns.js.map

XIOC detected Domain: patterns.js.map

extracted_from_files

Domain

detected Domain: backup.date

XIOC detected Domain: backup.date

extracted_from_files

Domain

detected Domain: options.help

XIOC detected Domain: options.help

extracted_from_files

Domain

detected Domain: mcp-guardian.js.map

XIOC detected Domain: mcp-guardian.js.map

extracted_from_files

Domain

detected Domain: config.d.ts.map

XIOC detected Domain: config.d.ts.map

extracted_from_files

Domain

detected Domain: config.js.map

XIOC detected Domain: config.js.map

extracted_from_files

Domain

detected Domain: index.d.ts.map

XIOC detected Domain: index.d.ts.map

extracted_from_files

Domain

detected Domain: index.js.map

XIOC detected Domain: index.js.map

extracted_from_files

Domain

detected Domain: result.servers.map

XIOC detected Domain: result.servers.map

extracted_from_files

Domain

detected Domain: server.issues.map

XIOC detected Domain: server.issues.map

extracted_from_files

Domain

detected Domain: result.summary.total

XIOC detected Domain: result.summary.total

extracted_from_files

Domain

detected Domain: spinner.fail

XIOC detected Domain: spinner.fail

extracted_from_files

Domain

detected Domain: options.watch

XIOC detected Domain: options.watch

extracted_from_files

Domain

detected Domain: tool.name

XIOC detected Domain: tool.name

extracted_from_files

Domain

detected Domain: p.id

XIOC detected Domain: p.id

extracted_from_files

Domain

detected Domain: mcp-guardian.d.ts.map

XIOC detected Domain: mcp-guardian.d.ts.map

extracted_from_files

Domain

detected Domain: raw.githubusercontent.com

XIOC detected Domain: raw.githubusercontent.com

extracted_from_files

Domain

detected Domain: evil-analytics.example.com

XIOC detected Domain: evil-analytics.example.com

extracted_from_files

Domain

detected Domain: clioptions.help

XIOC detected Domain: clioptions.help

extracted_from_files

Domain

detected Domain: clioptions.watch

XIOC detected Domain: clioptions.watch

extracted_from_files

Domain

detected Domain: config.watch

XIOC detected Domain: config.watch

extracted_from_files

Domain

detected Domain: entry.tools

XIOC detected Domain: entry.tools

extracted_from_files

Domain

detected Domain: github.com

XIOC detected Domain: github.com

extracted_from_files

Domain

detected Domain: microsoft.com

XIOC detected Domain: microsoft.com

extracted_from_files

Domain

detected Domain: readme.md

XIOC detected Domain: readme.md

extracted_from_files

Domain

detected Domain: husky.sh

XIOC detected Domain: husky.sh

extracted_from_files

Domain

detected Domain: invariantlabs.ai

XIOC detected Domain: invariantlabs.ai

extracted_from_files

Domain

detected Domain: unit42.paloaltonetworks.com

XIOC detected Domain: unit42.paloaltonetworks.com

extracted_from_files

Domain

detected Domain: simonwillison.net

XIOC detected Domain: simonwillison.net

extracted_from_files

URL

detected URL: https://registry.npmjs.org/which/-/which-2.0.2.tgz

XIOC detected URL: https://registry.npmjs.org/which/-/which-2.0.2.tgz

extracted_from_files

URL

detected URL: https://github.com/alexandriashai/mcp-guardian#readme

XIOC detected URL: https://github.com/alexandriashai/mcp-guardian#readme

extracted_from_files

detected IP: 1::bef

XIOC detected IP: 1::bef

extracted_from_files

URL

detected URL: https://registry.npmjs.org/cors/-/cors-2.8.6.tgz

XIOC detected URL: https://registry.npmjs.org/cors/-/cors-2.8.6.tgz

extracted_from_files

Domain

detected Domain: obj.map

XIOC detected Domain: obj.map

extracted_from_files

URL

detected URL: https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz

XIOC detected URL: https://registry.npmjs.org/cookie/-/cookie-0.7.2.tgz

extracted_from_files

Security Analysis Summary

Security Analysis Overview

mcp-guardian is a mcp extension published by wfmedia. Version 2.4.0 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 259 security findings.

Risk Assessment

This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.

Findings Breakdown

Critical: 6 finding(s)
High: 54 finding(s)
Medium: 190 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

Malware Detection: YARA rule matching against 2,400+ malware signatures
Secret Detection: Scanning for exposed API keys, tokens, and credentials
Static Analysis: Code-level security analysis for common vulnerability patterns
Network Analysis: Detection of suspicious network communications and endpoints
Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

mcp-guardian is published by wfmedia on the mcp marketplace.

Recommendation

This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.

Source Code Viewer

Source Code Not Available

Source code is not available for this version of the extension.

Frequently Asked Questions

Similar Extensions

Related extensions from the same publisher or marketplace

cbrowser

wfmedia

CRITICAL

update-browserslist-db

CRITICAL

@nitrostack/core

abhishekpanditoff

CRITICAL

@youtyan/browser-pilot

GitHub Actions

CRITICAL

@mikey-semy/plane-mcp

mikey-semy

CRITICAL

@iflow-mcp/intuit-quickbooks-online-mcp-server

chatflowdev

CRITICAL

Risk Assessment

Severity Breakdown

Finding Categories

YARA Rules Matched

MCP Server Analysis

About This Extension

Detailed Findings

MCP-TOOL-TOOL-POISONING-dist/bin/mcp-guardian.js-993

MCP-TOOL-TOOL-POISONING-dist/bin/mcp-guardian.js-993

MCP-TOOL-TOOL-POISONING-examples/poisoned-server/index.js-54

MCP-TOOL-TOOL-POISONING-examples/poisoned-server/index.js-54

MCP-TOOL-PROCESS-SPAWN-dist/src/patterns.js-281

MCP-TOOL-TOOL-POISONING-dist/src/patterns.js-117

MCP-TOOL-CREDENTIAL-ACCESS-dist/src/config.js-53

MCP-TOOL-CREDENTIAL-ACCESS-dist/src/manifest.js-45

MCP-TOOL-CREDENTIAL-ACCESS-dist/src/manifest.js-46

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/tool-pinning.js-187

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/tool-pinning.js-282

MCP-TOOL-CREDENTIAL-ACCESS-dist/src/config.js-16

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/tool-pinning.js-7

MCP-TOOL-FILESYSTEM-ACCESS-dist/bin/mcp-guardian.js-7

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/tool-pinning.js-255

MCP-TOOL-FILESYSTEM-ACCESS-dist/bin/mcp-guardian.js-957

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/tool-pinning.js-254

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/config.js-35

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/config.js-26

MCP-TOOL-FILESYSTEM-ACCESS-dist/bin/mcp-guardian.js-78

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/manifest.js-6

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/config.js-8

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/tool-pinning.js-143

MCP-TOOL-FILESYSTEM-ACCESS-dist/bin/mcp-guardian.js-1138

MCP-TOOL-FILESYSTEM-ACCESS-dist/bin/mcp-guardian.js-1118

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/tool-pinning.js-7

MCP-TOOL-FILESYSTEM-ACCESS-dist/bin/mcp-guardian.js-7

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/manifest.js-21

MCP-TOOL-FILESYSTEM-ACCESS-dist/src/tool-pinning.js-186

HASH-990c545736f12833

HASH-7554134aa5a09cda

HASH-e9d734398e275662

HASH-52a1e2c972468050

HASH-ff47713f7da6349e

HASH-4a2222ac41ae4612

HASH-f05e960ee52cf8ba

HASH-4c82113ee921e595

HASH-7a079aa0b0961c3d

YARA Rule Matches

postinstall file manipulation

postinstall crypto operations

postinstall network communication

UsingCommandLineArguments

credential ssh keys

credential aws credentials

postinstall obfuscation

credential env files

postinstall registry modification

postinstall system command

Indicators of Compromise

All Indicators · 174

Security Analysis Summary

Security Analysis Overview

Risk Assessment

Findings Breakdown

What Was Analyzed

Developer Information

Recommendation

Frequently Asked Questions

Similar Extensions

cbrowser

update-browserslist-db

@nitrostack/core

@youtyan/browser-pilot

@mikey-semy/plane-mcp

@iflow-mcp/intuit-quickbooks-online-mcp-server