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XSS Finder
yeah xss scanner pretty easy to do.
just read a web page, extract the html post/get variables (get is easier to can for obvious reasons). then you add a xss string to the end of the variable, contruct and view the url then analyse the source to see if your xss string is detected.
then just have that on a loop for each varible / page on the site. pretty simple. takes a fraction longer if your using post variables, but still same princible.