Directory traversal vulnerability in admin.php in GNU/Gallery 1.1.1.0 and earlier allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the show parameter.
https://www.exploit-db.com/exploits/5647
https://exchange.xforce.ibmcloud.com/vulnerabilities/42501
http://www.vupen.com/english/advisories/2008/1560/references