In a shopping context, id=1 might be a standard t-shirt. But what if id=99 corresponds to a "hidden" product that hasn't been released yet? Or worse, what if the URL structure changes to user_profile.php?id=1?
If you are logged in as User ID 5, and you change the URL to id=1, a vulnerable site might show you the profile and data of the Administrator (User ID 1). In a shopping cart, this could allow a malicious user to view other users' order history, shipping addresses, or saved credit cards. php id 1 shopping
To continue using PHP for shopping (which is perfectly safe when done correctly), you must eliminate raw ID exposure. Here are three professional strategies. In a shopping context, id=1 might be a standard t-shirt
Even if you fix SQL injection (using prepared statements), the "php id 1 shopping" pattern creates an IDOR vulnerability. If you are logged in as User ID
Imagine the URL:
account.php?id=1 (Viewing user #1’s orders)
account.php?id=2 (Viewing user #2’s orders)
If you do not check permissions, a logged-in user can simply change the id parameter in the URL to 2, 3, or 4 to view other customers’ names, addresses, and purchase history. This is not a hack; it is a browser edit. Yet, thousands of "php id 1 shopping" sites leak data this way daily.