SECURITY REPORT · EXTENSHI SCAN
Markdown Viewer with Mermaid
Chrome extension·by 76Hata
61
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
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
Markdown Viewer with Mermaid's safety score vs every other extension we've scanned
Globally
6%of extensions carry more risk
Riskier ←→ Safer
Ranked against 402,636 extensions
In Productivity
7%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 194,442 productivity extensions
Findings
152
median 16Lower is safer
Critical findings
13
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
167
median 14vs category median
Findings breakdown
Automated security signal · 152 distinct issues across 6 severities
152
distinct issues
detected
detected
Scanners reported 182 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical139%
High21%
Needs Review00%
Medium11576%
Low2214%
Info00%
Permissions requested
4 permissions declared
No risky permissions
4 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Add context menu items
Can add custom items to the right-click context menu
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
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Scan performed by extenshi.io · Jul 30, 2026
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