: Attackers use NULL because it is compatible with almost every data type (integers, strings, dates), making it the "safest" way to avoid syntax errors while testing column counts.
: This represents the original input (like a product category or search term) that the application expects. : Attackers use NULL because it is compatible
The string you provided is a classic payload. It is not a feature of a specific software product but rather a technique used by security researchers and attackers to probe databases for vulnerabilities. Purpose of the Payload It is not a feature of a specific
Once an attacker knows there are 8 columns, they can replace the NULL values with commands to extract sensitive data, such as usernames, passwords, or database versions. SQL injection UNION attacks | Web Security Academy How it Works
: This is a SQL comment marker that tells the database to ignore the rest of the original query, preventing errors from leftover code. How it Works