{keyword}' Union All Select Null,null,null,null,null,null-- Vigj Apr 2026

This treats user input as data only, never as executable code. It is the most effective defense against SQLi.

Once confirmed, the attacker would replace the NULL values with functions like version() , user() , or table names (e.g., information_schema.tables ) to begin exfiltrating sensitive data. Prevention and Mitigation This treats user input as data only, never

The primary goal of this specific payload is . By successfully executing this command, an attacker confirms that: The application is vulnerable to SQL Injection. The original query retrieves exactly six columns. The backend database supports the UNION operator. or table names (e.g.