Directory traversal vulnerability in index.php in Smeego 1.0, when magic_quotes_gpc is disabled, allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the lang cookie.
https://www.exploit-db.com/exploits/5640
https://exchange.xforce.ibmcloud.com/vulnerabilities/42498
http://www.vupen.com/english/advisories/2008/1563/references
http://www.securityfocus.com/bid/29264
http://www.securityfocus.com/archive/1/492227/100/0/threaded