Secunia Security Advisory – Some vulnerabilities have been reported in SquirrelMail, which can be exploited by malicious users to manipulate certain information and by malicious people to conduct cross-site scripting attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/44055/sa18985.txt
Source: https://packetstormsecurity.com/files/44055/Secunia-Security-Advisory-18985.html