The attacker adds this to a URL parameter or input field (e.g., ?id=1' AND 5161=2181-- qoyo ). Boolean Logic Test:
: This is a SQL comment marker (in MySQL, PostgreSQL, etc.). It instructs the database engine to ignore everything that follows it in the query. {KEYWORD} AND 5161=2181-- qoyo
This is a basic attempt to see if security measures are in place. The attacker adds this to a URL parameter or input field (e
: This is a Boolean statement. The server evaluates this as False because 5161 does not equal 2181. This is a basic attempt to see if
If you are running a , a bug bounty program , or testing your own code , I can provide specific examples of: How to prevent this using prepared statements. What to look for in a WAF (Web Application Firewall) log.
If the page breaks, returns an error, or shows no content, it confirms that the application is vulnerable to SQL injection because the AND False successfully changed the query's behavior.