What are the potential security risks of giving direct access to the server's operating system through an Admin-CP in PHP?

Giving direct access to the server's operating system through an Admin-CP in PHP can pose significant security risks, such as potential for unauthorized users to execute malicious commands on the server, leading to data breaches or system compromise. To mitigate this risk, it is crucial to implement proper authentication and authorization mechanisms, as well as input validation to prevent injection attacks.

// Example of implementing authentication and authorization checks before allowing access to server's operating system

session_start();

if(isset($_SESSION['admin_logged_in']) && $_SESSION['admin_logged_in'] === true) {
    // User is authenticated as admin, proceed with executing server commands
    // Add input validation and other security measures here
} else {
    // Redirect user to login page if not authenticated
    header("Location: login.php");
    exit();
}