Tools like Sequelize, Eloquent, or Entity Framework handle much of this protection for you by default. The Bottom Line
If you’ve spent any time looking at server logs, you’ve probably seen it: a weird string of keywords like UNION ALL SELECT NULL . It looks like gibberish, but it’s actually an attempt to speak directly to your database behind your back. What is this string? {KEYWORD} UNION ALL SELECT NULL,NULL,NULL-- DJGP
The snippet {KEYWORD} UNION ALL SELECT NULL,NULL,NULL-- is a classic attack pattern. Tools like Sequelize, Eloquent, or Entity Framework handle
: They use "NULL" to figure out exactly how many columns your database table has without triggering a data-type error. Tools like Sequelize
: This is SQL shorthand to comment out the rest of the legitimate code, ensuring the injected command runs cleanly. The "DJGP" Element