Same. Seems like the exploit wouldn't work for me. When I modify the XAUTHORITY line in the code, either to remove it or point it to my current XAUTHORITY value

Same. Seems like the exploit wouldn't work for me. When I modify the XAUTHORITY line in the code, either to remove it or point it to my current XAUTHORITY value, I rightfully get a GUI password prompt before the root shell will open. On Arch Linux.