Directory traversal vulnerability in index.php in Open Solution Quick.Cart 2.2 and earlier allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in an sLanguage cookie, which is used to define a value in config/general.php.
https://www.exploit-db.com/exploits/4025
https://exchange.xforce.ibmcloud.com/vulnerabilities/34687
http://www.vupen.com/english/advisories/2007/2038