Multiple directory traversal vulnerabilities in cpCommerce 1.1.0 allow remote attackers to include and execute arbitrary local files via a .. (dot dot) in (1) the language parameter in a language action to the default URI, which is not properly handled in actions/language.act.php, or (2) the action parameter to category.php.
https://www.exploit-db.com/exploits/5437
https://exchange.xforce.ibmcloud.com/vulnerabilities/41783
http://www.vupen.com/english/advisories/2008/1213/references