Improper Encoding or Escaping of Output Affecting org.webjars.bowergithub.katex:katex package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published20 Jan 2025
- disclosed17 Jan 2025
- creditnsysean
Introduced: 17 Jan 2025
NewCVE-2025-23207 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
org.webjars.bowergithub.katex:katex is a Fast math typesetting for the web.
Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output when rendering untrusted mathematical expressions with renderToString due to improper validation of attribute name argument in \htmlData. An attacker can include malicious input using \htmlData, which eventually could result in arbitrary JavaScript execution or generate invalid HTML.
Workaround
Avoid using or turning off the
trustoption, or set it to forbid\htmlDatacommands.Forbid inputs containing the substring
"\\htmlData".Sanitize HTML output from KaTeX.