A definite "oops" is in order here... In the first version of ULX 3.0 that we offered tonight, there was a major security exploit: anyone could run any command. Obviously, that isn't such a great thing... luckily, someone I was talking to about the new ULX picked it up just before I turned in for the night.
I can only breathe a large sigh of relief and hope that no one else downloaded this vulnerable version. (And hope that I didn't miss something while fixing this problem at 3 AM)