Intel/AIKIDO-2024-10036
markdown-it
AIKIDO-2024-10036
markdown-it is vulnerable to Cross-site Scripting (XSS)
Cross-site Scripting (XSS) Pre-CVE Published Apr 22, 2024
Found by Aikido Intel before public disclosure or CVE publication.
45
Medium Risk
This Affects:
markdown-it4.0.0 - 4.3.0
Fixed in 4.3.1Are you affected? Scan for Free
TL;DR
Affected versions of the package are vulnerable to Cross-site Scripting (XSS) through class injection. The markdown-it renderer (lib/renderer.js:36) appends the character class to the language- part of the tag without proper validation, allowing an attacker to inject any class into the code tag.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
markdown-it is vulnerable to Cross-site Scripting (XSS) in versions 4.0.0 - 4.3.0.
How to fix this
Upgrade the markdown-it library to the patch version.
Are You Affected?
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