SECURITY REPORT · EXTENSHI SCAN
Grammarly: AI Writing and Grammar Checker App
Edge extension·by Grammarly
0
/ 100 SAFETY SCORE
DANGEROUS
Meaningful risk surface. Avoid on managed devices without review.
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
Grammarly: AI Writing and Grammar Checker App's safety score vs every other extension we've scanned
Globally
1%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Social & Communication
0%of social & communication extensions carry more risk
Riskier ←→ Safer
Ranked against 12,741 social & communication extensions
Findings
491
median 4Lower is safer
Critical findings
16
median 0Severity = Critical
Permissions
8
median 3Declared in manifest
Active users
11561259
median 3vs category median
Findings breakdown
Automated security signal · 491 distinct issues across 6 severities
491
distinct issues
detected
detected
Scanners reported 581 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical163%
High163%
Needs Review00%
Medium22546%
Low22345%
Info112%
Permissions requested
3 risky permissions of 8 total
3 high-risk permissions require attention
This extension requests 8 permissions in total. 3 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
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Access user identity
Can get OAuth2 tokens and access your Google account identity
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Read clipboard
Can read text and data currently on your clipboard
Low
Use side panel
Can display content in the browser side panel
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Scan performed by extenshi.io · Jul 27, 2026
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