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The provided input is a UNION-based SQL injection payload designed to determine the number of columns in a database query by matching column counts with NULL values. This reconnaissance technique often uses comment indicators ( -- ) to bypass original query constraints, aiming to eventually exfiltrate data from the backend database. For a detailed explanation, read the full article at PortSwigger . SQL injection UNION attacks | Web Security Academy
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The provided input is a UNION-based SQL injection payload designed to determine the number of columns in a database query by matching column counts with NULL values. This reconnaissance technique often uses comment indicators ( -- ) to bypass original query constraints, aiming to eventually exfiltrate data from the backend database. For a detailed explanation, read the full article at PortSwigger . SQL injection UNION attacks | Web Security Academy
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