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KaTeX/docs/security.md
Ron Kok 754c601e34 Add note re: HTML to security documentation page (#2296) 
* Add note re: HTML to security documentation page

* Update docs/security.md

Co-authored-by: ylemkimon <y@ylem.kim>

Co-authored-by: ylemkimon <y@ylem.kim>
Co-authored-by: Erik Demaine <edemaine@mit.edu>
2020-07-11 11:04:27 -07:00

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id, title
id title
security Security

Any HTML generated by KaTeX should be safe from <script> or other code injection attacks.

Of course, it is always a good idea to sanitize the HTML, though you will need a rather generous whitelist (including some of SVG and MathML) to support all of KaTeX.

A variety of options give finer control over the security of KaTeX with untrusted inputs; refer to Options for more details.

  • maxSize can prevent large width/height visual affronts.
  • maxExpand can prevent infinite macro loop attacks.
  • trust can allow certain commands that may load external resources or change HTML attributes and thus are not always safe (e.g., \includegraphics or \htmlClass)

The error message thrown by KaTeX may contain unescaped LaTeX source code. See Handling Errors for more details.

If you discovered a security issue, please let us know via https://hackerone.com/khanacademy