This specific payload is often generated by automated security scanners (like ). Seeing this in your logs means someone—or some bot—is knocking on your door to see if the deadbolt is actually locked. It’s a reminder that in the world of web security, "sanitizing" user input isn't just a best practice; it's the difference between a secure site and a public data leak.
Once an attacker confirms that 10 columns work, they won't just select the number "34." They will replace those numbers with sensitive commands, such as: SELECT user, password, email FROM users
The string is designed to trick a website’s search bar or login field into running extra commands it wasn't supposed to.
: The attacker is playing a guessing game. A UNION attack only works if both queries have the exact same number of columns . By repeating "34," the attacker is testing if the database table has 10 columns. If the page loads without an error, they’ve found the "shape" of the table.