Directory traversal vulnerability in EasyWeb FileManager 1.0 RC-1 for PostNuke allows remote attackers to retrieve arbitrary files via a .. (dot dot) in the pathext parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/16806
https://euvd.enisa.europa.eu/vulnerability/EUVD-2004-2039
http://www.securityfocus.com/bid/10792
http://www.cirt.net/advisories/ew_file_manager.shtml