Directory traversal vulnerability in index.php in Coppermine 1.4.4 allows remote attackers to read arbitrary files via a .//./ (modified dot dot slash) in the file parameter, which causes a regular expression to collapse the sequences into standard "../" sequences.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25866
http://www.vupen.com/english/advisories/2006/1392
http://www.securityfocus.com/archive/1/431118/30/0/threaded
http://www.securityfocus.com/archive/1/431062