\htmlData does not validate attribute names in KaTeX
Summary
\htmlData does not validate attribute names in KaTeX
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2025-23207 node-katex
- Ubuntu UBUNTU-CVE-2025-23207 node-katex Fixed in: 0.13.11+~cs6.0.0-2ubuntu0.1~esm1
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com