<?php $connection = mysqli_connect("localhost", "user", "pass", "database"); // The crime happens here: direct concatenation of user input $user_id = $_GET['id1'];
User-agent: * Disallow: /upd.php Disallow: /*?id1= inurl php id1 upd
Introduction: The Hacker’s Shortcut If you spend any time in cybersecurity forums, bug bounty hunting communities, or even among the more shadowy corners of the web, you will eventually stumble upon a peculiar string of text: "inurl php id1 upd" . ?php $connection = mysqli_connect("localhost"
Consider a vulnerable line of PHP code:
Suddenly, the SQL query becomes: