{keyword}') Union All Select | Null,null,null,null,null,null,null,null,null-- Zljd

: Instead of building query strings with user input, use placeholders ( ? ). This ensures the database treats input as literal text, not executable code.

: Attackers can replace the NULL values with table names (like users or passwords ) to steal the entire database. : Instead of building query strings with user

: Only allow expected characters (e.g., alphanumeric only for a username). how it works

To protect an application from this specific type of attack, developers should follow these industry-standard practices: : Instead of building query strings with user

Below is a breakdown of what this code is, how it works, and the risks it poses. 🛠️ Anatomy of the Payload