I am posting this in case anyone cares to know in case it may affect them. I checked around and it is an old exploit but I would like if someone posted this here if they saw it being tested.
The exploit is based on submitting a ticket in WHMCS and the information is here: http://www.devilscafe.in/2012/05/whmcs-hacking-with-sumbit-ticket.html
I tested it on myself just to confirm and I found it to be fixed and not working.