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SECURITY REPORT · EXTENSHI SCAN

MarkDeck: Markdown Viewer & Reader

Chrome extension·by Json
75
/ 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

MarkDeck: Markdown Viewer & Reader's safety score vs every other extension we've scanned
Globally
24%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,539 extensions
In Appearance
6%of appearance extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 18,944 appearance extensions
Findings
62
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 2Declared in manifest
Active users
14
median 3vs category median

Findings breakdown

Automated security signal · 62 distinct issues across 6 severities
62
distinct issues
detected
Scanners reported 74 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

2 risky permissions of 3 total
2 high-risk permissions require attention
This extension requests 3 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
Observe web requests

Can monitor all network requests made by the browser

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

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Scan performed by extenshi.io · Sep 20, 2026
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