: The double dash ( -- ) is a comment in SQL, which "neutralizes" the rest of the original developer's code so it doesn't cause an error. Why This Matters SQL injection UNION attacks | Web Security Academy
: This operator combines the results of the original query with a new, malicious SELECT statement. : The double dash ( -- ) is
The string you provided is a used by attackers to test for and exploit database vulnerabilities. It is not a legitimate feature request, but rather a pattern used in cyberattacks to bypass security and extract unauthorized data. Breakdown of the Payload It is not a legitimate feature request, but
: These are placeholders used to match the number and data type of columns in the original query. The specific string 'qbqvq'||'pBDUArKiBK'||'qqbqq' is a unique marker; if it appears on the webpage, the attacker knows the injection was successful. : This is a negative number likely used
: This is a negative number likely used to ensure the original query returns no results, forcing the application to display only the results from the injected UNION statement.