{keyword}';waitfor Delay '0:0:5'-- Guide

: Strict allow-listing of expected characters can prevent special symbols like ; or -- from reaching the query.

: This character acts as a statement terminator, allowing a second, malicious command to be executed immediately after.

: Once a vulnerability is confirmed, attackers can use similar techniques to extract sensitive information, like user credentials or financial data. {KEYWORD}';WAITFOR DELAY '0:0:5'--

: This is a comment operator. It tells the database to ignore the rest of the original query, preventing syntax errors that would otherwise block the attack. The Goal of the Attack

: An attacker could use a much longer delay or a loop to tie up database connections, effectively performing a Denial of Service (DoS) attack. : Strict allow-listing of expected characters can prevent

: Use prepared statements so the database treats input as data, never as executable code.

: If the website takes exactly 5 seconds longer to load than usual after this input, the attacker knows the application is vulnerable to SQL injection. : This is a comment operator

: Ensure the database user account used by the web application has the minimum permissions necessary.