Index.php%3fid= - Inurl

| 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 |

$id = $_GET['id']; $result = mysqli_query($conn, "SELECT * FROM users WHERE id = $id");

By: Cybersecurity Insights Team

Combine these with site:*.edu (educational domains often have old code) or site:*.gov (government legacy systems) to see the scale of the problem. The inurl:index.php%3Fid= search query is a time capsule from the early internet. It represents an era where functionality was prioritized over security, where developers trusted user input, and where Google inadvertently became the world's best vulnerability scanner.

Here is the historical context: In the early 2000s, when PHP and MySQL became the dominant force for web development (think WordPress, Joomla, osCommerce), many novice developers built dynamic sites like this: 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.

$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: | Search Query | What it finds |

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.