CVE-2006-0173
Hummingbird Collaboration (aka Hummingbird Enterprise Collaboration) 5.21 and earlier allows remote attackers to misrepresent the type and name of a file via modified doc_ext and id parameters, which might trick a user into downloading dangerous or unexpected content.
Date published : 2006-01-11
http://www.securityfocus.com/bid/16195
http://www.securityfocus.com/archive/1/421392/100/0/threaded