Is "@opentabs-dev/opentabs-plugin-teams" on MCP Registry Safe to Install?

opentabs-dev-admin · mcp · v0.0.82

OpenTabs plugin for Microsoft Teams

Risk Assessment

Analyzed
100
out of 100
CRITICAL

266 security findings detected across all analyzers

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

Severity Breakdown

0
Critical
53
High
211
Medium
0
Low
0
Info

Finding Categories

53
Malware Signatures
11
Network
183
IoC Indicators

YARA Rules Matched

10 rules(53 hits)
postinstall network communication postinstall file manipulation postinstall environment access postinstall file download postinstall system command postinstall crypto operations postinstall obfuscation credential skype data postinstall registry modification NoUseWeakRandom

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

OpenTabs plugin for Microsoft Teams

Detailed Findings

66 total

YARA Rule Matches

10 rules

Indicators of Compromise

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

URLs
27
IP Addresses
4
Domains
154
Strings
183

All Indicators · 183

Domain
detected Domain: adapter.iife.js.map

XIOC detected Domain: adapter.iife.js.map

extracted_from_files

Domain
detected Domain: params.case

XIOC detected Domain: params.case

extracted_from_files

Domain
detected Domain: valueresult.issues.map

XIOC detected Domain: valueresult.issues.map

extracted_from_files

IP
detected IP: ce::a

XIOC detected IP: ce::a

extracted_from_files

URL
detected URL: https://teams.microsoft.com/api/chatsvc/amer';

XIOC detected URL: https://teams.microsoft.com/api/chatsvc/amer';

extracted_from_files

URL
detected URL: https://teams.live.com/v2/

XIOC detected URL: https://teams.live.com/v2/

extracted_from_files

Hash
detected SHA256 Hash: a96eccf13f96797a3b52be146490d5a75ade475a30a8d445b611161c57eea472

XIOC detected SHA256 Hash: a96eccf13f96797a3b52be146490d5a75ade475a30a8d445b611161c57eea472

extracted_from_files

URL
detected URL: http://json-schema.org/draft-04/schema#

XIOC detected URL: http://json-schema.org/draft-04/schema#

extracted_from_files

URL
detected URL: https://teams.live.com/v2/';

XIOC detected URL: https://teams.live.com/v2/';

extracted_from_files

URL
detected URL: https://teams.live.com/api/auth/v1.0/authz/consumer',

XIOC detected URL: https://teams.live.com/api/auth/v1.0/authz/consumer',

extracted_from_files

URL
detected URL: https://teams.live.com/api/chatsvc/consumer',

XIOC detected URL: https://teams.live.com/api/chatsvc/consumer',

extracted_from_files

URL
detected URL: https://api.spaces.skype.com/.default--',

XIOC detected URL: https://api.spaces.skype.com/.default--',

extracted_from_files

URL
detected URL: https://teams.microsoft.com/api/authsvc/v1.0/authz',

XIOC detected URL: https://teams.microsoft.com/api/authsvc/v1.0/authz',

extracted_from_files

URL
detected URL: https://stackoverflow.com/a/3143231

XIOC detected URL: https://stackoverflow.com/a/3143231

extracted_from_files

URL
detected URL: http://[$

XIOC detected URL: http://[$

extracted_from_files

URL
detected URL: https://json-schema.org/draft/2020-12/schema

XIOC detected URL: https://json-schema.org/draft/2020-12/schema

extracted_from_files

URL
detected URL: http://json-schema.org/draft-07/schema#

XIOC detected URL: http://json-schema.org/draft-07/schema#

extracted_from_files

URL
detected URL: https://github.com/colinhacks/zod/issues/4491

XIOC detected URL: https://github.com/colinhacks/zod/issues/4491

extracted_from_files

URL
detected URL: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/email

XIOC detected URL: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/email

extracted_from_files

URL
detected URL: https://thekevinscott.com/emojis-in-javascript/#writing-a-regular-expression

XIOC detected URL: https://thekevinscott.com/emojis-in-javascript/#writing-a-regular-expression

extracted_from_files

URL
detected URL: https://stackoverflow.com/questions/7860392/determine-if-string-is-in-base64-using-javascript

XIOC detected URL: https://stackoverflow.com/questions/7860392/determine-if-string-is-in-base64-using-javascript

extracted_from_files

URL
detected URL: https://stackoverflow.com/questions/106179/regular-expression-to-match-dns-hostname-or-ip-address

XIOC detected URL: https://stackoverflow.com/questions/106179/regular-expression-to-match-dns-hostname-or-ip-address

extracted_from_files

URL
detected URL: https://blog.stevenlevithan.com/archives/validate-phone-number#r4-3

XIOC detected URL: https://blog.stevenlevithan.com/archives/validate-phone-number#r4-3

extracted_from_files

URL
detected URL: https://teams.microsoft.com/api/authsvc/v1.0/authz

XIOC detected URL: https://teams.microsoft.com/api/authsvc/v1.0/authz

extracted_from_files

URL
detected URL: https://teams.microsoft.com/api/chatsvc/amer

XIOC detected URL: https://teams.microsoft.com/api/chatsvc/amer

extracted_from_files

URL
detected URL: https://teams.live.com/v2/)

XIOC detected URL: https://teams.live.com/v2/)

extracted_from_files

URL
detected URL: https://opentabs.dev)

XIOC detected URL: https://opentabs.dev)

extracted_from_files

URL
detected URL: https://developer.chrome.com/docs/extensions/develop/concepts/match-patterns

XIOC detected URL: https://developer.chrome.com/docs/extensions/develop/concepts/match-patterns

extracted_from_files

URL
detected URL: https://api.spaces.skype.com/.default--

XIOC detected URL: https://api.spaces.skype.com/.default--

extracted_from_files

Domain
detected Domain: schemas.js.map

XIOC detected Domain: schemas.js.map

extracted_from_files

Domain
detected Domain: search-people.d.ts.map

XIOC detected Domain: search-people.d.ts.map

extracted_from_files

Domain
detected Domain: falsyarray.map

XIOC detected Domain: falsyarray.map

extracted_from_files

Domain
detected Domain: send-message.d.ts.map

XIOC detected Domain: send-message.d.ts.map

extracted_from_files

Domain
detected Domain: send-message.js.map

XIOC detected Domain: send-message.js.map

extracted_from_files

Domain
detected Domain: set-channel-topic.d.ts.map

XIOC detected Domain: set-channel-topic.d.ts.map

extracted_from_files

Domain
detected Domain: set-channel-topic.js.map

XIOC detected Domain: set-channel-topic.js.map

extracted_from_files

Domain
detected Domain: list-conversations.d.ts.map

XIOC detected Domain: list-conversations.d.ts.map

extracted_from_files

Domain
detected Domain: list-conversations.js.map

XIOC detected Domain: list-conversations.js.map

extracted_from_files

Domain
detected Domain: read-messages.d.ts.map

XIOC detected Domain: read-messages.d.ts.map

extracted_from_files

Domain
detected Domain: read-messages.js.map

XIOC detected Domain: read-messages.js.map

extracted_from_files

Domain
detected Domain: remove-member.d.ts.map

XIOC detected Domain: remove-member.d.ts.map

extracted_from_files

Domain
detected Domain: remove-member.js.map

XIOC detected Domain: remove-member.js.map

extracted_from_files

Domain
detected Domain: schemas.d.ts.map

XIOC detected Domain: schemas.d.ts.map

extracted_from_files

Domain
detected Domain: get-conversation-details.js.map

XIOC detected Domain: get-conversation-details.js.map

extracted_from_files

Domain
detected Domain: get-current-user.d.ts.map

XIOC detected Domain: get-current-user.d.ts.map

extracted_from_files

Domain
detected Domain: get-current-user.js.map

XIOC detected Domain: get-current-user.js.map

extracted_from_files

Domain
detected Domain: get-user-profile.d.ts.map

XIOC detected Domain: get-user-profile.d.ts.map

extracted_from_files

Domain
detected Domain: p.id

XIOC detected Domain: p.id

extracted_from_files

Domain
detected Domain: p.email

XIOC detected Domain: p.email

extracted_from_files

Domain
detected Domain: get-user-profile.js.map

XIOC detected Domain: get-user-profile.js.map

extracted_from_files

Domain
detected Domain: create-chat.d.ts.map

XIOC detected Domain: create-chat.d.ts.map

extracted_from_files

Domain
detected Domain: create-chat.js.map

XIOC detected Domain: create-chat.js.map

extracted_from_files

Domain
detected Domain: delete-message.d.ts.map

XIOC detected Domain: delete-message.d.ts.map

extracted_from_files

Domain
detected Domain: delete-message.js.map

XIOC detected Domain: delete-message.js.map

extracted_from_files

Domain
detected Domain: edit-message.d.ts.map

XIOC detected Domain: edit-message.d.ts.map

extracted_from_files

Domain
detected Domain: edit-message.js.map

XIOC detected Domain: edit-message.js.map

extracted_from_files

Domain
detected Domain: get-conversation-details.d.ts.map

XIOC detected Domain: get-conversation-details.d.ts.map

extracted_from_files

Domain
detected Domain: plugin.tools

XIOC detected Domain: plugin.tools

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: teams-api.d.ts.map

XIOC detected Domain: teams-api.d.ts.map

extracted_from_files

Domain
detected Domain: teams-api.js.map

XIOC detected Domain: teams-api.js.map

extracted_from_files

Domain
detected Domain: add-member.d.ts.map

XIOC detected Domain: add-member.d.ts.map

extracted_from_files

Domain
detected Domain: add-member.js.map

XIOC detected Domain: add-member.js.map

extracted_from_files

Domain
detected Domain: issue.values.map

XIOC detected Domain: issue.values.map

extracted_from_files

Domain
detected Domain: meta.id

XIOC detected Domain: meta.id

extracted_from_files

Domain
detected Domain: inputs.target

XIOC detected Domain: inputs.target

extracted_from_files

Domain
detected Domain: json.properties

XIOC detected Domain: json.properties

extracted_from_files

Domain
detected Domain: iso.date

XIOC detected Domain: iso.date

extracted_from_files

Domain
detected Domain: checks.gt

XIOC detected Domain: checks.gt

extracted_from_files

Domain
detected Domain: checks.lt

XIOC detected Domain: checks.lt

extracted_from_files

Domain
detected Domain: blog.stevenlevithan.com

XIOC detected Domain: blog.stevenlevithan.com

extracted_from_files

Domain
detected Domain: err.name

XIOC detected Domain: err.name

extracted_from_files

Domain
detected Domain: array.map

XIOC detected Domain: array.map

extracted_from_files

Domain
detected Domain: issue.errors.map

XIOC detected Domain: issue.errors.map

extracted_from_files

Domain
detected Domain: emailregex.com

XIOC detected Domain: emailregex.com

extracted_from_files

Domain
detected Domain: regexes.email

XIOC detected Domain: regexes.email

extracted_from_files

URL
detected URL: https://teams.live.com/api/auth/v1.0/authz/consumer

XIOC detected URL: https://teams.live.com/api/auth/v1.0/authz/consumer

extracted_from_files

URL
detected URL: https://teams.live.com/api/chatsvc/consumer

XIOC detected URL: https://teams.live.com/api/chatsvc/consumer

extracted_from_files

Domain
detected Domain: tool.name

XIOC detected Domain: tool.name

extracted_from_files

Domain
detected Domain: a.tools

XIOC detected Domain: a.tools

extracted_from_files

URL
detected URL: https://github.com'),

XIOC detected URL: https://github.com'),

extracted_from_files

Domain
detected Domain: thekevinscott.com

XIOC detected Domain: thekevinscott.com

extracted_from_files

Domain
detected Domain: stackoverflow.com

XIOC detected Domain: stackoverflow.com

extracted_from_files

Domain
detected Domain: m.id

XIOC detected Domain: m.id

extracted_from_files

Domain
detected Domain: c.id

XIOC detected Domain: c.id

extracted_from_files

Domain
detected Domain: arr.map

XIOC detected Domain: arr.map

extracted_from_files

Domain
detected Domain: msg.properties

XIOC detected Domain: msg.properties

extracted_from_files

Domain
detected Domain: m.properties

XIOC detected Domain: m.properties

extracted_from_files

Domain
detected Domain: params.page

XIOC detected Domain: params.page

extracted_from_files

Domain
detected Domain: default.tools

XIOC detected Domain: default.tools

extracted_from_files

Domain
detected Domain: prefixitems.map

XIOC detected Domain: prefixitems.map

extracted_from_files

Domain
detected Domain: items.map

XIOC detected Domain: items.map

extracted_from_files

Domain
detected Domain: schema.anyof.map

XIOC detected Domain: schema.anyof.map

extracted_from_files

Domain
detected Domain: schema.oneof.map

XIOC detected Domain: schema.oneof.map

extracted_from_files

Domain
detected Domain: params.members.map

XIOC detected Domain: params.members.map

extracted_from_files

Domain
detected Domain: data.id

XIOC detected Domain: data.id

extracted_from_files

Domain
detected Domain: data.properties

XIOC detected Domain: data.properties

extracted_from_files

Domain
detected Domain: enumvalues.map

XIOC detected Domain: enumvalues.map

extracted_from_files

Domain
detected Domain: type.map

XIOC detected Domain: type.map

extracted_from_files

Domain
detected Domain: z.email

XIOC detected Domain: z.email

extracted_from_files

Domain
detected Domain: z.iso.date

XIOC detected Domain: z.iso.date

extracted_from_files

Domain
detected Domain: numberschema.gt

XIOC detected Domain: numberschema.gt

extracted_from_files

Domain
detected Domain: numberschema.lt

XIOC detected Domain: numberschema.lt

extracted_from_files

Domain
detected Domain: schema.properties

XIOC detected Domain: schema.properties

extracted_from_files

Domain
detected Domain: inst.gt

XIOC detected Domain: inst.gt

extracted_from_files

Domain
detected Domain: inst.lt

XIOC detected Domain: inst.lt

extracted_from_files

Domain
detected Domain: inst.int

XIOC detected Domain: inst.int

extracted_from_files

Domain
detected Domain: inst.safe

XIOC detected Domain: inst.safe

extracted_from_files

Domain
detected Domain: inst.rest

XIOC detected Domain: inst.rest

extracted_from_files

Domain
detected Domain: inst.in

XIOC detected Domain: inst.in

extracted_from_files

Domain
detected Domain: cls.name

XIOC detected Domain: cls.name

extracted_from_files

Domain
detected Domain: ctx2.target

XIOC detected Domain: ctx2.target

extracted_from_files

Domain
detected Domain: this.ctx.target

XIOC detected Domain: this.ctx.target

extracted_from_files

Domain
detected Domain: this.ctx.io

XIOC detected Domain: this.ctx.io

extracted_from_files

Domain
detected Domain: params.io

XIOC detected Domain: params.io

extracted_from_files

Domain
detected Domain: checks.map

XIOC detected Domain: checks.map

extracted_from_files

Domain
detected Domain: inst.email

XIOC detected Domain: inst.email

extracted_from_files

Domain
detected Domain: inst.date

XIOC detected Domain: inst.date

extracted_from_files

Domain
detected Domain: ctx.io

XIOC detected Domain: ctx.io

extracted_from_files

Domain
detected Domain: ctx.target

XIOC detected Domain: ctx.target

extracted_from_files

Domain
detected Domain: schema.id

XIOC detected Domain: schema.id

extracted_from_files

Domain
detected Domain: regexes.map

XIOC detected Domain: regexes.map

extracted_from_files

Domain
detected Domain: mime.map

XIOC detected Domain: mime.map

extracted_from_files

Domain
detected Domain: json2.properties

XIOC detected Domain: json2.properties

extracted_from_files

Domain
detected Domain: def.items.map

XIOC detected Domain: def.items.map

extracted_from_files

Domain
detected Domain: issue2.values.map

XIOC detected Domain: issue2.values.map

extracted_from_files

Domain
detected Domain: meta3.id

XIOC detected Domain: meta3.id

extracted_from_files

Domain
detected Domain: pm.id

XIOC detected Domain: pm.id

extracted_from_files

Domain
detected Domain: this.name

XIOC detected Domain: this.name

extracted_from_files

Domain
detected Domain: json-schema.org

XIOC detected Domain: json-schema.org

extracted_from_files

Domain
detected Domain: performance.now

XIOC detected Domain: performance.now

extracted_from_files

Domain
detected Domain: developer.mozilla.org

XIOC detected Domain: developer.mozilla.org

extracted_from_files

Domain
detected Domain: truthyarray.map

XIOC detected Domain: truthyarray.map

extracted_from_files

Domain
detected Domain: def.values.map

XIOC detected Domain: def.values.map

extracted_from_files

Domain
detected Domain: inst.constructor.name

XIOC detected Domain: inst.constructor.name

extracted_from_files

Domain
detected Domain: result2.issues.map

XIOC detected Domain: result2.issues.map

extracted_from_files

Domain
detected Domain: def.in

XIOC detected Domain: def.in

extracted_from_files

Domain
detected Domain: def.parts

XIOC detected Domain: def.parts

extracted_from_files

Domain
detected Domain: sizing.unit.one

XIOC detected Domain: sizing.unit.one

extracted_from_files

Domain
detected Domain: results.map

XIOC detected Domain: results.map

extracted_from_files

Domain
detected Domain: def.options.map

XIOC detected Domain: def.options.map

extracted_from_files

Domain
detected Domain: patterns.map

XIOC detected Domain: patterns.map

extracted_from_files

Domain
detected Domain: sharedvalue.data

XIOC detected Domain: sharedvalue.data

extracted_from_files

Domain
detected Domain: merged.data

XIOC detected Domain: merged.data

extracted_from_files

Domain
detected Domain: def.rest

XIOC detected Domain: def.rest

extracted_from_files

Domain
detected Domain: keyresult.issues.map

XIOC detected Domain: keyresult.issues.map

extracted_from_files

Domain
detected Domain: zod.run

XIOC detected Domain: zod.run

extracted_from_files

Domain
detected Domain: result.issues.map

XIOC detected Domain: result.issues.map

extracted_from_files

Domain
detected Domain: def.property

XIOC detected Domain: def.property

extracted_from_files

Domain
detected Domain: lines.map

XIOC detected Domain: lines.map

extracted_from_files

Domain
detected Domain: content.map

XIOC detected Domain: content.map

extracted_from_files

Domain
detected Domain: r.data

XIOC detected Domain: r.data

extracted_from_files

Domain
detected Domain: catchall.run

XIOC detected Domain: catchall.run

extracted_from_files

Domain
detected Domain: object.prototype.hasownproperty.call

XIOC detected Domain: object.prototype.hasownproperty.call

extracted_from_files

Domain
detected Domain: issues.map

XIOC detected Domain: issues.map

extracted_from_files

Domain
detected Domain: obj.constructor.name

XIOC detected Domain: obj.constructor.name

extracted_from_files

Domain
detected Domain: inst.name

XIOC detected Domain: inst.name

extracted_from_files

Domain
detected Domain: issue2.errors.map

XIOC detected Domain: issue2.errors.map

extracted_from_files

Domain
detected Domain: curr.properties

XIOC detected Domain: curr.properties

extracted_from_files

Domain
detected Domain: path.map

XIOC detected Domain: path.map

extracted_from_files

Domain
detected Domain: api.fl.spaces.skype.com

XIOC detected Domain: api.fl.spaces.skype.com

extracted_from_files

Domain
detected Domain: discover.skype

XIOC detected Domain: discover.skype

extracted_from_files

Domain
detected Domain: err2.name

XIOC detected Domain: err2.name

extracted_from_files

Domain
detected Domain: claims.email

XIOC detected Domain: claims.email

extracted_from_files

Domain
detected Domain: body.properties

XIOC detected Domain: body.properties

extracted_from_files

Domain
detected Domain: array2.map

XIOC detected Domain: array2.map

extracted_from_files

Domain
detected Domain: keys.map

XIOC detected Domain: keys.map

extracted_from_files

Domain
detected Domain: date.now

XIOC detected Domain: date.now

extracted_from_files

Domain
detected Domain: value.name

XIOC detected Domain: value.name

extracted_from_files

Domain
detected Domain: node.id

XIOC detected Domain: node.id

extracted_from_files

Domain
detected Domain: v.name

XIOC detected Domain: v.name

extracted_from_files

Domain
detected Domain: capped.map

XIOC detected Domain: capped.map

extracted_from_files

Domain
detected Domain: entry.data

XIOC detected Domain: entry.data

extracted_from_files

Domain
detected Domain: github.com

XIOC detected Domain: github.com

extracted_from_files

Domain
detected Domain: teams.live.com

XIOC detected Domain: teams.live.com

extracted_from_files

Domain
detected Domain: opentabs.dev

XIOC detected Domain: opentabs.dev

extracted_from_files

Domain
detected Domain: developer.chrome.com

XIOC detected Domain: developer.chrome.com

extracted_from_files

Domain
detected Domain: api.spaces.skype.com

XIOC detected Domain: api.spaces.skype.com

extracted_from_files

Domain
detected Domain: teams.microsoft.com

XIOC detected Domain: teams.microsoft.com

extracted_from_files

Domain
detected Domain: regexes.date

XIOC detected Domain: regexes.date

extracted_from_files

Domain
detected Domain: values.map

XIOC detected Domain: values.map

extracted_from_files

Domain
detected Domain: search-people.js.map

XIOC detected Domain: search-people.js.map

extracted_from_files

Security Analysis Summary

Security Analysis Overview

@opentabs-dev/opentabs-plugin-teams is a mcp extension published by opentabs-dev-admin. Version 0.0.82 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 266 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

  • High: 53 finding(s)
  • Medium: 211 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

@opentabs-dev/opentabs-plugin-teams is published by opentabs-dev-admin 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.

Frequently Asked Questions