Secunia Security Advisory – Debian has issued an update for typo3. This fixes some vulnerabilities, which can be exploited by malicious people to conduct cross-site scripting attacks, and by malicious users to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/67292/sa30660.txt
Source: https://packetstormsecurity.com/files/67292/Secunia-Security-Advisory-30660.html