Multiple PHP remote file inclusion vulnerabilities in phpBB Plus 1.53, and 1.53a before 20070922, when register_globals is enabled, allow remote attackers to execute arbitrary PHP code via a URL in the phpbb_root_path parameter to (1) language/lang_german/lang_admin_album.php, (2) language/lang_english/lang_main_album.php, and (3) language/lang_english/lang_admin_album.php, different vectors than CVE-2007-5009.
http://www.vupen.com/english/advisories/2007/3247
http://www.securityfocus.com/bid/25776
http://www.phpbb2.de/ftopic45218.html