Youtube onebox not sanitised

XSS exploit on mouse over

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Thanks for reporting that issue @Salamander.

I’m unlisting this since this is a valid XSS.

I’ll have a look tomorrow unless @sam gets to it before :wink:

Title of the video is

DiscoExploitTest" onmouseover="alert('Yes? Yes')"

Thanks @Salamander, I just pushed a fix

https://github.com/discourse/discourse/commit/c2bd159acea6f0d662152af52e74a56427bd9fbc

1 Like

Note, fix is backported to beta and stable, closing this, flag to reopen if still having any issues.