: Identify table names and column structures. Recommended Fix
: This attempts to combine the results of the legitimate query with a new "dummy" query created by the attacker.
To prevent this, you should never insert user input directly into SQL strings. Instead, use . This treats the input as literal text rather than executable code, rendering the injection attempt harmless. : Identify table names and column structures
: This is a string concatenation used as a "fingerprint." If the attack is successful, the page will display this unique string, confirming the database is vulnerable.
If this input was successfully processed by a system, it would indicate a high-risk vulnerability. An attacker could potentially: Instead, use
: 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. If this input was successfully processed by a
: Log in as an administrator without a password.
