{keyword} Union All Select Null,null,null-- Djgp -

: They use "NULL" to figure out exactly how many columns your database table has without triggering a data-type error.

Seeing {KEYWORD} UNION ALL SELECT in your logs is a reminder that the internet is always "knocking on the door." By using modern coding practices, you make sure that door stays locked. {KEYWORD} UNION ALL SELECT NULL,NULL,NULL-- DJGP

: This is SQL shorthand to comment out the rest of the legitimate code, ensuring the injected command runs cleanly. The "DJGP" Element : They use "NULL" to figure out exactly

Instead of building strings, use prepared statements. This treats input as "data" rather than "executable code." {KEYWORD} UNION ALL SELECT NULL,NULL,NULL-- DJGP