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

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 operator combines the results of the original query with a new, malicious query. This allows an attacker to retrieve data from other tables that they weren't supposed to see.

SQL Injection occurs when untrusted user input is concatenated directly into a database query, allowing an attacker to manipulate the original command. Once confirmed, the attacker would replace the NULL

: This is the SQL comment symbol. It tells the database to ignore the rest of the original, legitimate query that follows the injection point, preventing syntax errors.

Below is an overview of how this specific payload works and the risks it poses to database security. Understanding the Payload Structure SQL Injection occurs when untrusted user input is

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.

The string you provided, '{KEYWORD}' UNION ALL SELECT NULL,NULL,NULL,NULL,NULL,NULL-- viGJ , is a classic example of a , specifically a Union-Based SQL Injection attack. Below is an overview of how this specific

: In a Union-Based attack, the injected SELECT statement must have the exact same number of columns as the original statement. Attackers use NULL as a placeholder to discover the correct column count without triggering data type errors.