CVE:CVE-2005-4084
CNNVD:CNNVD-200512-144
phpBB eXtreme Styles module 2.2.1及更早版本中的xs_edit.php存在安装路径泄露漏洞，远程攻击者可以通过无效的viewbackup参数获取应用程序的安装路径。
solution:Upgrade phpbb_styles phpbb_extreme_styles to a higher version than 2.2.1,and avoid the version (,2.2.1]