Secunia Security Advisory – A vulnerability has been reported in Citrix XenApp Online Plug-in and Citrix Receiver for iPhone, which can be exploited by malicious people to conduct spoofing attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/82589/sa37319.txt
Source: https://packetstormsecurity.com/files/82589/Secunia-Security-Advisory-37319.html