{keyword} Union All Select 'qbqvq'||'kpfllonnsg'||'qqbqq',null,null,null,null,null,null,null,null-- Lpgy Apr 2026

: The double dash is a comment in SQL, which tells the database to ignore everything after it, effectively neutralizing the rest of the original, legitimate code. Security Implications

: These act as placeholders. For a UNION attack to work, the second query must have the exact same number of columns as the first. : The double dash is a comment in

: This attempts to combine the results of the legitimate query with a new "dummy" query created by the attacker. : The double dash is a comment in

: Identify table names and column structures. Recommended Fix : The double dash is a comment in

If this input was successfully processed by a system, it would indicate a high-risk vulnerability. An attacker could potentially: