Secunia Security Advisory – Debian has issued an update for horde3. This fixes some vulnerabilities, which can be exploited by malicious people to conduct script insertion and cross-site scripting attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/85239/sa38013.txt
Source: https://packetstormsecurity.com/files/85239/Secunia-Security-Advisory-38013.html