CVE-2024-28246: katex — Fix

Description

KaTeX is a JavaScript library for TeX math rendering on the web. Code that uses KaTeX's `trust` option, specifically that provides a function to blacklist certain URL protocols, can be fooled by URLs in malicious inputs that use uppercase characters in the protocol. In particular, this can allow for malicious input to generate `javascript:` links in the output, even if the `trust` function tries to forbid this protocol via `trust: (context) => context.protocol !== 'javascript'`. Upgrade to KaTeX v0.16.10 to remove this vulnerability.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

Weakness Type (CWE)

CWE-184 CWE-184

CWE-697 CWE-697

Affected Products

Vendor	Product	Versions
katex	katex	0.11.0 — 0.16.10

References

Advisories & Patches

https://github.com/KaTeX/KaTeX/commit/fc5af64183a3ceb9be9d1c23a275999a728593de https://github.com/KaTeX/KaTeX/commit/fc5af64183a3ceb9be9d1c23a275999a728593de

Other References

https://github.com/KaTeX/KaTeX/security/advisories/GHSA-3wc5-fcw2-2329 https://github.com/KaTeX/KaTeX/security/advisories/GHSA-3wc5-fcw2-2329

Frequently Asked Questions

What is CVE-2024-28246? +

KaTeX is a JavaScript library for TeX math rendering on the web. Code that uses KaTeX's `trust` option, specifically that provides a function to blacklist certain URL protocols, can be fooled by URLs in malicious inputs that use uppercase characters in the protocol. In particular, this can allow for malicious input to generate `javascript:` links in the output, even if the `trust` function tries to forbid this protocol via `trust: (context) => context.protocol !== 'javascript'`. Upgrade to KaTeX v0.16.10 to remove this vulnerability. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-28246? +

CVE-2024-28246 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-28246? +

CVE-2024-28246 affects products from katex, specifically: katex. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-28246? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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