CVE-2025-23207

KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web. KaTeX users who render untrusted mathematical expressions with `renderToString` could encounter malicious input using `\htmlData` that runs arbitrary JavaScript, or generate invalid HTML. Users are advised to upgrade to KaTeX v0.16.21 to remove this vulnerability. Users unable to upgrade should avoid use of or turn off the `trust` option, or set it to forbid `\htmlData` commands, forbid inputs containing the substring `"\\htmlData"` and sanitize HTML output from KaTeX.

CVSS v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/KaTeX/KaTeX/commit/ff289955e81aab89086eef09254cbf88573d415c	Patch
https://github.com/KaTeX/KaTeX/security/advisories/GHSA-cg87-wmx4-v546	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:katex:katex:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-01-17 22:15

Updated : 2025-09-08 21:17

NVD link : CVE-2025-23207

Mitre link : CVE-2025-23207

CVE.ORG link : CVE-2025-23207

JSON object : View

Products Affected

katex

katex

CWE

CWE-116

Improper Encoding or Escaping of Output

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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