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.
Configurations

Configuration 1 (hide)

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

History

08 Sep 2025, 21:17

Type Values Removed Values Added
References () https://github.com/KaTeX/KaTeX/commit/ff289955e81aab89086eef09254cbf88573d415c - () https://github.com/KaTeX/KaTeX/commit/ff289955e81aab89086eef09254cbf88573d415c - Patch
References () https://github.com/KaTeX/KaTeX/security/advisories/GHSA-cg87-wmx4-v546 - () https://github.com/KaTeX/KaTeX/security/advisories/GHSA-cg87-wmx4-v546 - Third Party Advisory
Summary
  • (es) KaTeX es una Librería de JavaScript rápida y fácil de usar para la representación matemática de TeX en la web. Los usuarios de KaTeX que representen expresiones matemáticas no confiables con `renderToString` podrían encontrarse con entradas maliciosas utilizando `\htmlData` que ejecutan JavaScript arbitrario o generan HTML no válido. Se recomienda a los usuarios que actualicen a KaTeX v0.16.21 para eliminar esta vulnerabilidad. Los usuarios que no puedan actualizar deben evitar el uso de la opción `trust` o desactivarla, o configurarla para prohibir los comandos `\htmlData`, prohibir las entradas que contengan la subcadena `"\\htmlData"` y la salida HTML Desinfectar de KaTeX.
CPE cpe:2.3:a:katex:katex:*:*:*:*:*:*:*:*
First Time Katex katex
Katex
CWE CWE-79

17 Jan 2025, 22:15

Type Values Removed Values Added
New CVE

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')