often interact directly with a SQL database. If the input isn't properly sanitized, a user could modify the id=1' OR 1=1 ) to perform a SQL Injection attack Automated Scanning : Security tools like
“Find me a story,” he said. “Not just a bug. A story.” inurl php id 1
Creating a Dynamic Blog System in PHP: Building blog.php?id=1 often interact directly with a SQL database
The attacker adds a single quote to the URL: http://test-server.net/users.php?id=7' inurl php id 1
On its own, ?id=1 is harmless. It is how the server handles that id parameter that makes the difference. Most modern frameworks automatically protect against the following attacks, but countless legacy systems and custom PHP scripts remain vulnerable.
If you expect id to be a number, enforce that: