Is "update-browserslist-db" on MCP Registry Safe to Install?

ai · mcp · v1.2.3

CLI tool to update caniuse-lite to refresh target browsers from Browserslist config

Risk Assessment

Analyzed
100
out of 100
CRITICAL

64 security findings detected across all analyzers

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

Severity Breakdown

13
Critical
12
High
31
Medium
0
Low
0
Info

Finding Categories

9
Malware Signatures
1
Secrets
23
IoC Indicators

YARA Rules Matched

6 rules(9 hits)
postinstall system command postinstall network communication credential env files postinstall obfuscation UsingShellInterpreterWhenExecutingOSCommands postinstall file manipulation

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

CLI tool to update caniuse-lite to refresh target browsers from Browserslist config

Detailed Findings

41 total

YARA Rule Matches

6 rules

Indicators of Compromise

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

URLs
9
Domains
13
Strings
23

All Indicators · 23

Domain
detected Domain: browsersl.ist

XIOC detected Domain: browsersl.ist

extracted_from_files

URL
detected URL: https://evilmartians.com/badges/sponsored-by-evil-martians.svg

XIOC detected URL: https://evilmartians.com/badges/sponsored-by-evil-martians.svg

extracted_from_files

URL
detected URL: https://tidelift.com/funding/github/npm/browserslist

XIOC detected URL: https://tidelift.com/funding/github/npm/browserslist

extracted_from_files

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

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

extracted_from_files

Domain
detected Domain: pico.green

XIOC detected Domain: pico.green

extracted_from_files

Domain
detected Domain: blocks.map

XIOC detected Domain: blocks.map

extracted_from_files

Domain
detected Domain: opencollective.com

XIOC detected Domain: opencollective.com

extracted_from_files

Domain
detected Domain: tidelift.com

XIOC detected Domain: tidelift.com

extracted_from_files

Domain
detected Domain: stackoverflow.com

XIOC detected Domain: stackoverflow.com

extracted_from_files

Other
detected Email: [email protected]

XIOC detected Email: [email protected]

extracted_from_files

URL
detected URL: https://browsersl.ist/logo.svg

XIOC detected URL: https://browsersl.ist/logo.svg

extracted_from_files

URL
detected URL: https://github.com/browserslist/update-db#readme)**.

XIOC detected URL: https://github.com/browserslist/update-db#readme)**.

extracted_from_files

Domain
detected Domain: github.com

XIOC detected Domain: github.com

extracted_from_files

Domain
detected Domain: evilmartians.com

XIOC detected Domain: evilmartians.com

extracted_from_files

Domain
detected Domain: pico.red

XIOC detected Domain: pico.red

extracted_from_files

Domain
detected Domain: e.name

XIOC detected Domain: e.name

extracted_from_files

Domain
detected Domain: this.name

XIOC detected Domain: this.name

extracted_from_files

Domain
detected Domain: added.map

XIOC detected Domain: added.map

extracted_from_files

Domain
detected Domain: sitnik.ru

XIOC detected Domain: sitnik.ru

extracted_from_files

URL
detected URL: https://stackoverflow.com/a/11477448/4536543

XIOC detected URL: https://stackoverflow.com/a/11477448/4536543

extracted_from_files

URL
detected URL: https://github.com/browserslist/browserslist/)

XIOC detected URL: https://github.com/browserslist/browserslist/)

extracted_from_files

URL
detected URL: https://evilmartians.com/?utm_source=update-browserslist-db

XIOC detected URL: https://evilmartians.com/?utm_source=update-browserslist-db

extracted_from_files

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

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

extracted_from_files

Security Analysis Summary

Security Analysis Overview

update-browserslist-db is a mcp extension published by ai. Version 1.2.3 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 64 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: 13 finding(s)
  • High: 12 finding(s)
  • Medium: 31 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

update-browserslist-db is published by ai 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