If you are a or site owner and saw this in your logs, it means someone is scanning your site for holes. To protect yourself, you should always use parameterized queries (prepared statements) to ensure user input is never executed as code. Do you have server logs you need help interpreting, or
: This is a SQL comment symbol. It tells the database to ignore the rest of the original, legitimate code that follows. If you are a or site owner and
The string you provided is a payload. It is a specialized technique used to test for and exploit security vulnerabilities in a website's database. Specifically, this string is an Union-Based SQL Injection attempt. 🛡️ Breakdown of the Payload It tells the database to ignore the rest
An attacker can then replace the NULL values with commands to: Steal . Access private customer data . Delete or modify database records . Specifically, this string is an Union-Based SQL Injection
If a website processes this string and shows a blank page (or the usual page) instead of an error, it confirms the site is .
: A placeholder for a standard search term or input value meant to trigger a legitimate database query.
: The attacker is trying to determine how many columns the original database table has. They keep adding NULL values until the page loads correctly without an error.