logically stopping xss

["Justin Shin" <zorkshin () tampabay rr com>]

i know there's a lot of stupid jokes about XSS vulns right now, but I was wondering if there is any firewall or IDS 
software that can look for suspicious GET requests ... ie.

GET /vulnerablewebapp/?<XSS SHZNIT>

I'm sure there's a program out there ... and I'm stupid, please don't kill me...

-- Justin Shin

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