SECURITY REPORT · EXTENSHI SCAN
Mattermost Deck
Chrome extension·by mmiyaji
0
/ 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
Mattermost Deck's safety score vs every other extension we've scanned
Globally
5%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Make Chrome Yours
4%of make chrome yours extensions carry more risk
Riskier ←→ Safer
Ranked against 22,985 make chrome yours extensions
Findings
40
median 9Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
4
median 2Declared in manifest
Active users
37
median 18vs category median
Findings breakdown
Automated security signal · 40 distinct issues across 6 severities
40
distinct issues
detected
detected
Critical00%
High513%
Needs Review00%
Medium2563%
Low1025%
Info00%
Permissions requested
2 risky permissions of 4 total
2 high-risk permissions require attention
This extension requests 4 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Store local data
Can save data locally in the browser for persistence
Low
Schedule tasks
Can schedule periodic background tasks
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Scan performed by extenshi.io · Aug 12, 2026
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