Secunia Security Advisory – r45c4l has reported a vulnerability in the Newsletter plugin for WordPress, which can be exploited by malicious people to conduct SQL injection attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/71125/sa32336.txt
Source: https://packetstormsecurity.com/files/71125/Secunia-Security-Advisory-32336.html