What are some potential security risks in the provided PHP code for identifying administrators?

The provided PHP code for identifying administrators is vulnerable to SQL injection attacks because it directly concatenates user input into the SQL query. To mitigate this risk, we should use prepared statements to safely handle user input and prevent SQL injection attacks. 

// Fix for preventing SQL injection attacks
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username AND is_admin = 1");
$stmt->bindParam(':username', $username);
$stmt->execute();

Keywords

SQL injection cross-site scripting authentication bypass insecure direct object references session fixation

Related Questions