Breaking PDO: When Prepared Statements Aren't Enough

Introduction Prepared statements are considered the gold standard for preventing SQL injection. Every security guide, every OWASP recommendation, every senior developer will tell you: “Use prepared statements and you’re safe.” But what if I told you that even properly implemented prepared statements can be bypassed? In this post, I’ll walk you through a technique that exploits PHP’s PDO library specifically how it handles emulated prepared statements. You’ll learn how a simple sorting parameter, combined with a null byte, can turn “secure” code into a full database compromise. ...

November 30, 2025 · 11 min · net0