CVE-2004-2535
The person-to-person secure messaging feature in Sticker before 3.1.0 beta 2 allows remote attackers to post messages to unauthorized private groups by using the group’s public encryption key.
Date published : 2005-10-25
http://www.securityfocus.com/bid/11333
http://www.tickertape.org/projects/sticker/release_notes-3.1.0b2.html