Secunia Security Advisory – Solpot has reported a vulnerability in PHP Event Calendar, which can be exploited by malicious people to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/48318/sa21074.txt
Source: https://packetstormsecurity.com/files/48318/Secunia-Security-Advisory-21074.html

