SQL injection vulnerability in (1) index.php, and possibly (2) admin/index.php, in Falt4Extreme RC4 10.9.2007 allows remote attackers to execute arbitrary SQL commands via the nav_ID parameter.
https://www.exploit-db.com/exploits/4711
https://exchange.xforce.ibmcloud.com/vulnerabilities/38950
http://www.securityfocus.com/archive/1/484813/100/0/threaded
http://www.h-labs.org/blog/2007/12/05/falt4_cms_security_report_advisory.html
http://sourceforge.net/forum/forum.php?forum_id=762931