Multiple PHP remote file inclusion vulnerabilities in Moodle 1.7.1 allow remote attackers to execute arbitrary PHP code via a URL in the cmd parameter to (1) admin/utfdbmigrate.php or (2) filter.php.
http://www.securityfocus.com/archive/1/462556/100/0/threaded
http://www.novell.com/linux/security/advisories/2007_15_sr.html