PHP remote file inclusion vulnerability in includes/antispam.php in the SpamBlockerMODv 1.0.2 and earlier module for phpBB allows remote attackers to execute arbitrary PHP code via a URL in the phpbb_root_path parameter.
https://www.exploit-db.com/exploits/2533
https://exchange.xforce.ibmcloud.com/vulnerabilities/29506
https://euvd.enisa.europa.eu/vulnerability/EUVD-2006-5286
http://www.vupen.com/english/advisories/2006/4028
http://www.securityfocus.com/bid/20501