$item_id = intval($_GET['item_id']); $quantity = intval($_GET['num']);
Security researchers and "bug hunters" look for this specific URL pattern because scripts written in this style are often prone to several classic web vulnerabilities: 1. SQL Injection (SQLi) add-cart.php num
// Handle remove/update actions if ($_SERVER['REQUEST_METHOD'] == 'POST') $product_id = isset($_POST['product_id']) ? (int)$_POST['product_id'] : 0; $action = isset($_POST['action']) ? $_POST['action'] : ''; $_POST['action'] : ''; We will use for database
We will use for database interactions because it supports Prepared Statements, which are mandatory for preventing SQL Injection attacks. $_POST['action'] : ''
: Never trust the price calculated by the cart session alone; re-calculate the total from the database prices during the final payment step. Are you writing this for a CTF (Capture The Flag) challenge, or are you developing an actual shop If you tell me your goal, I can provide: proof-of-concept exploit script for testing. secure version using Prepared Statements for database integration. front-end AJAX implementation to improve user experience.