{keyword} Union All Select Null,null,null,null,null,null-- Gojb ❲TRUSTED❳

This is likely a or "signature" used by an automated vulnerability scanner (such as Burp Suite, SQLmap, or Acunetix).

: NULL is used because it is compatible with almost any data type (integers, strings, dates, etc.). This is likely a or "signature" used by

: The database returns a row of empty data. The attacker now knows the table has 6 columns and can proceed to more dangerous injections, such as UNION SELECT username, password, NULL... to steal sensitive information. such as UNION SELECT username