Secunia Security Advisory – A vulnerability and a weakness have been reported in Mailman, which can be exploited by malicious people to conduct cross-site scripting attacks and potentially brute force a user’s password.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/35705/sa13603.txt
Source: https://packetstormsecurity.com/files/35705/Secunia-Security-Advisory-13603.html