{keyword} Union All Select Null,'qbqvq'||'zztyernefl'||'qqbqq',null,null,null,null,null,null,null-- Ijiy ⚡ Complete

The librarian goes to the back (the database), finds the gardening books, and brings them to you.

You go to the librarian (the website) and ask, "Show me all books about Gardening " (the KEYWORD ). The librarian goes to the back (the database),

If the librarian is "vulnerable," they won't realize you've added a second, unauthorized command. They will return with a stack of gardening books, but sitting right on top will be a slip of paper with a name from the payroll. How to Stay Safe They will return with a stack of gardening

To understand how this works in "real life," imagine you are at a library: look at the employee payroll

Instead of just saying "Gardening," you say: "Show me Gardening books AND ALSO go into the restricted office, look at the employee payroll, and tell me the name on the second paycheck."

If you are seeing this on your own website logs or search bar, it means someone (or an automated bot) is testing your site for security holes. To prevent this:

: This command tells the database to combine the results of the original (legitimate) search with a second search created by the attacker.