SQL injection vulnerability in index.php in Limbo CMS 1.0.4.2 and earlier, with register_globals off, allows remote attackers to execute arbitrary SQL commands via the _SERVER[REMOTE_ADDR] parameter, which modifies the underlying $_SERVER variable.
http://www.vupen.com/english/advisories/2005/2932
http://www.securityfocus.com/archive/1/419470/100/0/threaded