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Re: Fwd: XSS evasion


Clinton Gormley wrote:
> HTML::StripScripts::Parser has a default deny everything approach,
> and reconstructs the HTML fed to it, so unless it makes sense as
> html, it doesn't get passed through and reconstructed.

This sounds like a good approach, but it's worth noting that XSS is
fundamentally an escaping problem, not a filtering one. Nitesh Dhanjani
discusses this a bit here:

http://oreillynet.com/onlamp/blog/2005/10/repeat_after_me_lack_of__outpu.html

Chris

-- 
Chris Shiflett
http://shiflett.org/


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