$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:

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

One of the most iconic, persistent, and dangerous search strings in existence is this:

| 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 |

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.

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.

By: Cybersecurity Insights Team

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= -

$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:

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

One of the most iconic, persistent, and dangerous search strings in existence is this: inurl index.php%3Fid=

| 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 |

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

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.

By: Cybersecurity Insights Team

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.