{keyword} Union All Select Null,null,null,null,null,null-- Gojb Info

Scanners append strings like GoJB so that the security researcher can search the website's logs or the page's source code later to confirm that their input was successfully processed and reflected by the server. Summary of the Attack Flow

: For a UNION to work, the second query must have the exact same number of columns as the first query. 3. SELECT NULL,NULL,NULL,NULL,NULL,NULL Scanners append strings like GoJB so that the

Developers should use Parameterized Queries (Prepared Statements), which treat user input as literal data rather than executable code. : This "comments out" the rest of the

This string is a classic example of a used by security researchers and attackers to probe a website's database for vulnerabilities. to steal sensitive information.

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

: This "comments out" the rest of the original SQL query written by the developers.

: 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.