Directory traversal vulnerability in the view-source sample file in Apache Software Foundation Cocoon 2.1 and 2.2 allows remote attackers to access arbitrary files via a .. (dot dot) in the filename parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/13499
https://euvd.enisa.europa.eu/vulnerability/EUVD-2003-1162
http://www.securityfocus.com/bid/8883
http://www.securiteam.com/securitynews/6W00L0U8KC.html
http://securitytracker.com/id?1007993