In the world of information security, the difference between a secure web application and a breached database often comes down to a single character. For penetration testers, bug bounty hunters, and malicious actors alike, search engines are not just tools for finding information—they are backdoors waiting to be discovered.
Disclaimer: This article is for educational purposes and authorized security testing only. Unauthorized access to computer systems is a crime. The author does not endorse the malicious use of Google Dorks. inurl index.php%3Fid=
SELECT * FROM products WHERE product_id = $_GET['id']; The developer assumed that the id coming from the URL would always be a number. They did not "sanitize" the input. In the world of information security, the difference
By: Cybersecurity Insights Team
$id = $_GET['id']; $stmt = $conn->prepare("SELECT * FROM users WHERE id = ?"); $stmt->bind_param("i", $id); // The "i" forces the input to be an integer. $stmt->execute(); Alternatively, if you cannot rewrite the backend, cast the variable to an integer: Unauthorized access to computer systems is a crime
| Search Query | What it finds | | :--- | :--- | | inurl:index.php?id= | Standard SQLi potential | | inurl:product.php?id= | E-commerce SQLi | | inurl:index.php?catid= | Category based injection | | inurl:page.php?file= | Local File Inclusion (LFI) | | inurl:index.php?page=admin | Admin panel exposure |