SECURITY REPORT · EXTENSHI SCAN
User JavaScript and CSS
Chrome extension·by tenRabbits
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
User JavaScript and CSS's safety score vs every other extension we've scanned
Globally
56.32%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
46.32%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
36
median 38Lower is safer
Risky permissions
3
median 1Critical + high perms
Total permissions
5
median 4All declared perms
Critical findings
1
median 2Severity = Critical
Findings breakdown
Automated security signal · 36 distinct issues across 6 severities
36
distinct issues
detected
detected
Scanners reported 41 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical13%
High1336%
Needs Review00%
Medium1747%
Low514%
Info00%
Permissions requested
3 risky permissions of 5 total
3 high-risk permissions require attention
This extension requests 5 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
High
User scripts
Can register and execute user scripts in web pages
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Unlimited local storage
Can store large amounts of data locally without size limits
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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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