Open redirect vulnerability in htdocs/user.php in XOOPS 2.0.18 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in the xoops_redirect parameter.
https://www.exploit-db.com/exploits/5057
http://xoops.svn.sourceforge.net/viewvc/xoops?view=rev&revision=1282
http://www.securityfocus.com/archive/1/487484/100/0/threaded