As everyone is now aware, there have been a couple of security exploits recently discovered. Unfortunately, those exploits also exist in phpBB 2.0.12.
These two changes are very easy to employ and normally I would post the code, but due to the serious nature of these exploits, I will simply point you to the phpbb forum.
I urge everyone to visit the phpbb forums and read the phpBB Urgent Security Update Post and implement these two changes!
Steph Benoit
http://64bit.us
BBtoNuke 2.0.13 also available here.