SECURITY REPORT · EXTENSHI SCAN
SIS server-side autologin
Firefox extension·by Kuba
0
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.
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
SIS server-side autologin's safety score vs every other extension we've scanned
Globally
56%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Privacy & Security
43%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,537 privacy & security extensions
Findings
10
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
5
median 4Declared in manifest
Active users
0
median 3vs category median
Findings breakdown
Automated security signal · 10 distinct issues across 6 severities
10
distinct issues
detected
detected
Critical00%
High110%
Needs Review00%
Medium550%
Low440%
Info00%
Permissions requested
1 risky permission of 5 total
1 high-risk permission require attention
This extension requests 5 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
Medium
Monitor navigation
Can observe and track tab navigation events and URL changes
Medium
Store local data
Can save data locally in the browser for persistence
Low
Block network requests (declarative)
Can block or redirect network requests using predefined rules without seeing content
Info
*://cas.cuni.cz/*
No additional information available.
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Scan performed by extenshi.io · Aug 24, 2026
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