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enhancement request - sanitize <script> tags in MathJax #128

trevor opened this Issue May 30, 2014 · 1 comment


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trevor commented May 30, 2014

Sorry if I'm missing the obvious way to do this:

I'd like to sanitize input between the MathJax markers such that script tags are not allowed. This seems relatively straightforward elsewhere in user-submitted kramdown content, but the MathJax tags appear to allow injection.

For instance:

$$ <script>alert('a')</script> <script>alert('b')</script> $$

is rendered as:

<script type="math/tex; mode=display">% <![CDATA[
 <script>alert('a')</script> <script>alert('b')</script>  %]]></script>

Which causes the second alert b to appear.


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gettalong commented Jun 2, 2014

Thanks for reporting this bug! This will be fixed in the next release.

@gettalong gettalong closed this in 072b5da Jun 2, 2014

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