{keyword} Union All Select Null,null,null,null,null,null,null,null,null,null-- Zvuz -

: By injecting ten NULL values, the attacker is essentially asking the database, "Do you have ten columns?" If the page loads normally, the answer is "yes."

: This is a SQL comment symbol. It tells the database to ignore everything that follows it, effectively neutralizing the rest of the original, legitimate code. : By injecting ten NULL values, the attacker

: This is likely a "fingerprint" or a unique string used by automated scanning tools (like SQLmap) to identify if the injected code was successfully processed. The "Essay" of a Vulnerability The "Essay" of a Vulnerability If we were

If we were to view this string as a narrative, it tells the story of a . : By injecting ten NULL values

: This command is used to combine the results of two different SQL queries. Attackers use it to append their own data to the output of a legitimate query.