If you found this in your website logs, someone is [2]. If you are a developer, this is a reminder to use parameterized queries (prepared statements) to ensure user input is never treated as executable code [2, 6].
: This instruction tells the database to combine the results of the original query with a new, malicious query [1, 4].
: This is likely an invalid ID used to ensure the original query returns no results, allowing the injected results to show up instead [1, 4].
: This is a comment marker that tells the database to ignore the rest of the legitimate code, preventing errors [1, 3]. What This Means for You