$query = "SELECT * FROM users WHERE id = '$id'"; If an attacker manipulates the id parameter to inject malicious SQL code, they can potentially extract or modify sensitive data. For example, if an attacker enters the following URL:
$stmt = $pdo->prepare("SELECT * FROM users WHERE id = :id"); $stmt->bindParam(":id", $id); $stmt->execute(); In this example, the id parameter is bound to a parameter :id , which prevents malicious SQL code from being injected. inurl php id1 upd
Here's an example of a vulnerable URL:
$query = "SELECT * FROM users WHERE id = '1' OR 1=1 --"; This query will return all rows from the users table, allowing the attacker to access sensitive data. $query = "SELECT * FROM users WHERE id