SQL injection vulnerability in index.php of WebChat 1.5 included in XOOPS 1.0 allows remote attackers to execute arbitrary SQL commands via the roomid parameter.
http://www.securityfocus.com/bid/6165
http://www.iss.net/security_center/static/10606.php
http://cert.uni-stuttgart.de/archive/bugtraq/2002/11/msg00258.html