SECURITY REPORT · EXTENSHI SCAN
Extensions for Mermaid
Edge extension·by Stefan Spasovski
37
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.
Likely abandonedsafety score reduced by 30 points
- No update in over 5 years
- Built on Manifest V2, which Chrome and Edge are retiring
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue
How it ranks
Extensions for Mermaid's safety score vs every other extension we've scanned
Globally
11%of extensions carry more risk
Riskier ←→ Safer
Ranked against 403,022 extensions
In Developer Tools
20%of developer tools extensions carry more risk
Riskier ←→ Safer
Ranked against 3,406 developer tools extensions
Findings
52
median 16Lower is safer
Critical findings
0
median 1Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
460
median 50vs category median
Findings breakdown
Automated security signal · 52 distinct issues across 6 severities
52
distinct issues
detected
detected
Critical00%
High48%
Needs Review00%
Medium4077%
Low612%
Info24%
Permissions requested
2 permissions declared
No risky permissions
2 permissions requested — none are flagged as risky.
Info
https://github.com/*
No additional information available.
Info
https://*.github.com/*
No additional information available.
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Scan performed by extenshi.io · Aug 3, 2026
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