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.
: This is a Boolean statement. The server evaluates this as False because 5161 does not equal 2181. {KEYWORD} AND 5161=2181-- qoyo
The attacker adds this to a URL parameter or input field (e.g., ?id=1' AND 5161=2181-- qoyo ). Boolean Logic Test: If the page breaks, returns an error, or
: A junk string used as a filler to complete the SQL syntax structure. Purpose of this Payload If the page breaks
: This is a SQL comment marker (in MySQL, PostgreSQL, etc.). It instructs the database engine to ignore everything that follows it in the query.