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

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

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 You go to the librarian (the website) and

This specific line of code is designed to trick a database into revealing information it shouldn't. Here is what each part does: How to Stay Safe This specific line of

: The attacker uses NULL to match the number of columns in the original query without causing a data type error. The string in the middle is a "fingerprint"—if the word "ZZTyernefl" appears on the website, the attacker knows the injection worked and exactly which column displays data on the screen. The librarian goes to the back (the database),

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