What potential issues can arise when using PHP sessions for login authentication?

One potential issue that can arise when using PHP sessions for login authentication is session fixation attacks, where an attacker sets a user's session ID before the user logs in, allowing them to hijack the session. To prevent this, you can regenerate the session ID upon successful login to ensure that each session has a unique identifier. 

session_start();

// Perform login authentication
if ($authenticated) {
    session_regenerate_id(); // Regenerate session ID upon successful login
    $_SESSION['logged_in'] = true;
    // Other login logic
}

Keywords

PHP sessions login authentication security vulnerabilities session hijacking CSRF attacks

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