All In One Control Panel (AIOCP) 1.3.007 and earlier allows remote attackers to obtain the full path of the web server via certain requests to (1) public/code/cp_dpage.php, possibly involving the aiocp_dp[] parameter, (2) public/code/cp_show_ec_products.php, possibly involving the order_field[] parameter, and (3) public/code/cp_show_page_help.php, possibly involving the hp[] parameter, which reveal the path in various error messages.