Secunia Security Advisory – Debian has issued an update for squirrelmail. This fixes some vulnerabilities, which can be exploited by malicious people to conduct cross-site scripting and cross-site request forgery attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/56735/sa25236.txt
Source: https://packetstormsecurity.com/files/56735/Secunia-Security-Advisory-25236.html