KaTeX vulnerability allows malicious inputs to generate 'javascript:' links
CVE-2024-28246

5.5MEDIUM

Key Information:

Vendor

Katex

Status
Katex
Vendor
CVE Published:
25 March 2024

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.

Affected Version(s)

KaTeX >= 0.11.0, < 0.16.10

References

https://github.com/KaTeX/KaTeX/security/advisories/GHSA-3...
x_refsource_CONFIRM
https://github.com/KaTeX/KaTeX/commit/fc5af64183a3ceb9be9...
x_refsource_MISC

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.