Secunia Security Advisory – Debian has issued an update for twiki. This fixes a security issue, which can be exploited by malicious people to disclose sensitive information or to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/70225/sa31964.txt
Source: https://packetstormsecurity.com/files/70225/Secunia-Security-Advisory-31964.html

