SECURITY REPORT · EXTENSHI SCAN
CancelProof: Cancel Subscriptions with Proof
Chrome extension·by Matan Bukra
0
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
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
CancelProof: Cancel Subscriptions with Proof's safety score vs every other extension we've scanned
Globally
15%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Productivity
19%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 177,133 productivity extensions
Findings
42
median 16Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
7
median 3Declared in manifest
Active users
10
median 14vs category median
Findings breakdown
Automated security signal · 42 distinct issues across 6 severities
42
distinct issues
detected
detected
Scanners reported 46 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High37%
Needs Review00%
Medium3071%
Low717%
Info25%
Permissions requested
2 risky permissions of 7 total
2 high-risk permissions require attention
This extension requests 7 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
Manage downloads(optional)
Can initiate downloads and access your download history
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Unlimited local storage
Can store large amounts of data locally without size limits
Low
Schedule tasks
Can schedule periodic background tasks
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Scan performed by extenshi.io · Aug 16, 2026
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