PHP remote file inclusion vulnerability in functions.php in Extreme phpBB (aka phpBB Extreme) 3.0.1 allows remote attackers to execute arbitrary PHP code via a URL in the phpbb_root_path parameter.
https://www.exploit-db.com/exploits/3370
https://exchange.xforce.ibmcloud.com/vulnerabilities/32685
http://www.vupen.com/english/advisories/2007/0733