phpBB official site was hacked one week ago. It is still under maintenance.
Maintenance
We are sorry to report that we have been attacked through a 0-day-exploit in our PHPList installation (responsible for the mailing list about new releases). phpBB.com will remain unavailable while we work to recover. No vulnerabilities have been found in the phpBB software itself.
You can download phpBB here: http://www.ohloh.net/p/phpbb
You can get support at the temporary support forums or on IRC:
chat.freenode.net #phpbb
A more detailed explanation about the incident.
Press Contact: If you need to get in contact with the management, please email phpbb_press (at) marshalrusty (dot) com.
– the phpBB team
I do have some forum powered by phpBB. It is good news that phpBB software is OK.