Secunia Security Advisory – Justin C. Klein Keane has reported a vulnerability in the Calendar module for Drupal, which can be exploited by malicious users to conduct script insertion attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/79867/sa36012.txt
Source: https://packetstormsecurity.com/files/79867/Secunia-Security-Advisory-36012.html