SQL injection vulnerability in Quicksilver Forums before 1.5.1 allows remote attackers to execute arbitrary SQL commands via the HTTP_USER_AGENT header.
http://www.vupen.com/english/advisories/2005/2729
http://www.securityfocus.com/bid/15710
http://sourceforge.net/project/shownotes.php?release_id=375970&group_id=154354