Secunia Security Advisory – Some vulnerabilities have been reported in WebCalenderC3, which can be exploited by malicious people to conduct cross-site scripting attacks and disclose potentially sensitive information.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/85106/sa38135.txt
Source: https://packetstormsecurity.com/files/85106/Secunia-Security-Advisory-38135.html