If it has been known, why OP has not fixed it yet? or He doesnt know that this exist? Anyway, I do apologized if this was already known or given, its my first time to visit the demo site and just did some simple tests without the knowledge of this being known already. =)
I don't think he knows how to fix it? Its been around for like a year. Not much people know about the exploit unless you're from alphabay.
It was kept on the down low but yeah some scripts have fixings that needs to be done but its entirely up to him if he wants to acknowledge it.
