How to customise wp-login.php only for users who are setting a password for the first time?
You can add an extra help message box, on the reset password screen: with the following: /** * Display an extra help message box on the ‘reset password’ screen * * @link http://wordpress.stackexchange.com/a/204429/26350 */ add_action( ‘validate_password_reset’, function( $errors ) { add_action( ‘login_message’, function( $message ) { // Modify this help message box to your needs: … Read more