admin' AND extractvalue(1,concat(0x3a,(SELECT upw FROM user LIMIT 1)))-- 라고 쳤는데 짤린 플래그가 나올줄알았는디
(1064, "You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ''' at line 1")
도와주세요 혹시 몰라서
admin' AND extractvalue(1,concat(0x3a,(SELECT upw FROM user WHERE uid ='admin' LIMIT 1)))--
로도 해봤는데 안돼네요