Directory traversal vulnerability in cgi-bin/his-webshop.pl in HIS Webshop 2.50 allows remote attackers to read arbitrary files via a .. (dot dot) in the t parameter.
https://www.exploit-db.com/exploits/5304
https://exchange.xforce.ibmcloud.com/vulnerabilities/41407
http://www.vupen.com/english/advisories/2008/0991/references
http://www.securityfocus.com/bid/28425
http://www.securityfocus.com/archive/1/490016/100/0/threaded