PHP remote file inclusion vulnerability in includes/openid/Auth/OpenID/BBStore.php in phpBB Openid 0.2.0 allows remote attackers to execute arbitrary PHP code via a URL in the openid_root_path parameter.
https://www.exploit-db.com/exploits/4471
https://exchange.xforce.ibmcloud.com/vulnerabilities/36876
http://www.vupen.com/english/advisories/2007/3330
http://www.securityfocus.com/archive/1/481215/100/0/threaded