Secunia Security Advisory – Debian has issued an update for xulrunner. This fixes some vulnerabilities, which can be exploited by malicious people to conduct cross-site scripting or cross-site request forgery attacks, and to potentially compromise a user’s system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/61788/sa27957.txt
Source: https://packetstormsecurity.com/files/61788/Secunia-Security-Advisory-27957.html

