PHP remote file inclusion vulnerability in bb_usage_stats/includes/bb_usage_stats.php in phpBB XS 0.58 and earlier allows remote attackers to execute arbitrary PHP code via a URL in the phpbb_root_path parameter, a different vector than CVE-2006-4780.
http://www.vupen.com/english/advisories/2006/3654
http://www.securityfocus.com/archive/1/452469/100/200/threaded
http://www.securityfocus.com/archive/1/446108/100/0/threaded