The "Send as attachment" feature in Ipswitch MOVEit DMZ before 8.2 and MOVEit Mobile before 1.2.2 allow remote authenticated users to bypass authorization and read uploaded files via a valid FileID in the (1) serverFileIds parameter to mobile/sendMsg or (2) arg01 parameter to human.aspx.
http://seclists.org/fulldisclosure/2016/Jan/95
http://docs.ipswitch.com/MOVEit/DMZ82/ReleaseNotes/MOVEitReleaseNotes82.pdf