SQL injection vulnerability in plexcart.pl in NicPlex PlexCart X3 and earlier allows remote attackers to execute arbitrary SQL commands via the catid parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25917
http://secunia.com/advisories/18033
http://pridels0.blogspot.com/2006/04/plexcart-x3-sql-inj.html