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The search string is a specific type of advanced search query, often referred to as a Google Dork . While it may look like a random string of characters to the average user, it is a powerful tool used by security researchers, ethical hackers, and—unfortunately—cybercriminals to identify potential vulnerabilities in websites.
$id = $_GET['id']; // Gets the ID from the URL $query = "SELECT * FROM articles WHERE id = " . $id; // Puts it directly into the SQL query
If the website’s code does not properly sanitize the id value, an attacker could modify the URL to:
Before we can understand the vulnerability, we must dissect the search query itself. The string inurl commy indexphp id is a hybrid search operator, combining Google’s advanced syntax with a common filename and parameter.