Then 2593 Else 2593*(select 2593 From Information_schema.character_sets) End)) - (select (case When (2593=6942)
This is often used in blind SQL injection to test if a database is vulnerable. By forcing the database to multiply a value by every row in a standard table like INFORMATION_SCHEMA , an attacker can cause a "Time Delay" or a "Heavy Query" to confirm the injection point exists. Security Implications
This appears to be an designed to perform a mathematical operation based on a conditional statement. Specifically, the query breaks down as follows: The Logic: It checks if 2593 equals 6942 . This is often used in blind SQL injection
Never trust user-supplied data to build raw SQL strings. Specifically, the query breaks down as follows: The
If you are seeing this in your web server logs or as an input in your application: This is often used in blind SQL injection
Since that is false, it attempts to execute 2593 * (SELECT 2593 FROM INFORMATION_SCHEMA.CHARACTER_SETS) .
