diff --git src/wp-includes/general-template.php src/wp-includes/general-template.php
index f554e1f..4adb6bb 100644
--- src/wp-includes/general-template.php
+++ src/wp-includes/general-template.php
@@ -3475,3 +3475,5 @@ function wp_heartbeat_settings( $settings ) {
 
 	return $settings;
 }
+
+
diff --git src/wp-login.php src/wp-login.php
index ea3afc6..e8140d7 100644
--- src/wp-login.php
+++ src/wp-login.php
@@ -527,7 +527,7 @@ case 'retrievepassword' :
 <form name="lostpasswordform" id="lostpasswordform" action="<?php echo esc_url( network_site_url( 'wp-login.php?action=lostpassword', 'login_post' ) ); ?>" method="post">
 	<p>
 		<label for="user_login" ><?php _e('Username or Email:') ?><br />
-		<input type="text" name="user_login" id="user_login" class="input" value="<?php echo esc_attr($user_login); ?>" size="20" /></label>
+		<input type="text" name="user_login" id="user_login" class="input" value="<?php echo esc_attr( $user_login ); ?>" required="required" autofocus="autofocus" size="20" /></label>
 	</p>
 	<?php
 	/**
@@ -625,7 +625,7 @@ case 'rp' :
 
 		<div class="wp-pwd">
 			<span class="password-input-wrapper">
-				<input type="password" data-reveal="1" data-pw="<?php echo esc_attr( wp_generate_password( 16 ) ); ?>" name="pass1" id="pass1" class="input" size="20" value="" autocomplete="off" aria-describedby="pass-strength-result" />
+				<input type="password" data-reveal="1" data-pw="<?php echo esc_attr( wp_generate_password( 16 ) ); ?>" name="pass1" id="pass1" class="input" required="required" size="20" value="" autocomplete="off" autofocus="autofocus" aria-describedby="pass-strength-result" />
 			</span>
 			<div id="pass-strength-result" class="hide-if-no-js" aria-live="polite"><?php _e( 'Strength indicator' ); ?></div>
 		</div>
@@ -633,7 +633,7 @@ case 'rp' :
 
 	<p class="user-pass2-wrap">
 		<label for="pass2"><?php _e( 'Confirm new password' ) ?></label><br />
-		<input type="password" name="pass2" id="pass2" class="input" size="20" value="" autocomplete="off" />
+		<input type="password" name="pass2" id="pass2" class="input" required="required" size="20" value="" autocomplete="off" />
 	</p>
 
 	<p class="description indicator-hint"><?php echo wp_get_password_hint(); ?></p>
@@ -712,14 +712,14 @@ case 'register' :
 	login_header(__('Registration Form'), '<p class="message register">' . __('Register For This Site') . '</p>', $errors);
 ?>
 
-<form name="registerform" id="registerform" action="<?php echo esc_url( wp_registration_url() ); ?>" method="post" novalidate="novalidate">
+<form name="registerform" id="registerform" action="<?php echo esc_url( wp_registration_url() ); ?>" method="post">
 	<p>
 		<label for="user_login"><?php _e('Username') ?><br />
-		<input type="text" name="user_login" id="user_login" class="input" value="<?php echo esc_attr(wp_unslash($user_login)); ?>" size="20" /></label>
+		<input type="text" name="user_login" id="user_login" class="input" value="<?php echo esc_attr( wp_unslash( $user_login ) ); ?>" required="required" autofocus="autofocus" size="20" /></label>
 	</p>
 	<p>
 		<label for="user_email"><?php _e('Email') ?><br />
-		<input type="email" name="user_email" id="user_email" class="input" value="<?php echo esc_attr( wp_unslash( $user_email ) ); ?>" size="25" /></label>
+		<input type="email" name="user_email" id="user_email" class="input" value="<?php echo esc_attr( wp_unslash( $user_email ) ); ?>" required="required" size="25" /></label>
 	</p>
 	<?php
 	/**
@@ -881,11 +881,11 @@ default:
 <form name="loginform" id="loginform" action="<?php echo esc_url( wp_login_url() ); ?>" method="post">
 	<p>
 		<label for="user_login"><?php _e('Username') ?><br />
-		<input type="text" name="log" id="user_login"<?php echo $aria_describedby_error; ?> class="input" value="<?php echo esc_attr( $user_login ); ?>" size="20" /></label>
+		<input type="text" name="log" id="user_login"<?php echo $aria_describedby_error; ?> class="input" value="<?php echo esc_attr( $user_login ); ?>" autofocus="autofocus" required="required" size="20" /></label>
 	</p>
 	<p>
 		<label for="user_pass"><?php _e('Password') ?><br />
-		<input type="password" name="pwd" id="user_pass"<?php echo $aria_describedby_error; ?> class="input" value="" size="20" /></label>
+		<input type="password" name="pwd" id="user_pass"<?php echo $aria_describedby_error; ?> class="input" value="" required="required" size="20" /></label>
 	</p>
 	<?php
 	/**
diff --git src/wp-signup.php src/wp-signup.php
index 6852bb8..f983e35 100644
--- src/wp-signup.php
+++ src/wp-signup.php
@@ -108,9 +108,9 @@ function show_blog_form( $blogname = '', $blog_title = '', $errors = '' ) {
 	<?php }
 
 	if ( !is_subdomain_install() )
-		echo '<span class="prefix_address">' . $current_site->domain . $current_site->path . '</span><input name="blogname" type="text" id="blogname" value="'. esc_attr($blogname) .'" maxlength="60" /><br />';
+		echo '<span class="prefix_address">' . $current_site->domain . $current_site->path . '</span><input name="blogname" type="text" id="blogname" value="' . esc_attr( $blogname ) . '" required="required" autofocus="autofocus" maxlength="60" /><br />';
 	else
-		echo '<input name="blogname" type="text" id="blogname" value="'.esc_attr($blogname).'" maxlength="60" /><span class="suffix_address">.' . ( $site_domain = preg_replace( '|^www\.|', '', $current_site->domain ) ) . '</span><br />';
+		echo '<input name="blogname" type="text" id="blogname" value="' . esc_attr( $blogname ) . '" required="required" autofocus="autofocus" maxlength="60" /><span class="suffix_address">.' . ( $site_domain = preg_replace( '|^www\.|', '', $current_site->domain ) ) . '</span><br />';
 
 	if ( !is_user_logged_in() ) {
 		if ( !is_subdomain_install() )
@@ -126,7 +126,7 @@ function show_blog_form( $blogname = '', $blog_title = '', $errors = '' ) {
 	<?php if ( $errmsg = $errors->get_error_message('blog_title') ) { ?>
 		<p class="error"><?php echo $errmsg ?></p>
 	<?php }
-	echo '<input name="blog_title" type="text" id="blog_title" value="'.esc_attr($blog_title).'" />';
+	echo '<input name="blog_title" type="text" id="blog_title" value="' . esc_attr( $blog_title ) . '" required="required" />';
 	?>
 
 	<?php
@@ -218,7 +218,7 @@ function show_user_form($user_name = '', $user_email = '', $errors = '') {
 	if ( $errmsg = $errors->get_error_message('user_name') ) {
 		echo '<p class="error">'.$errmsg.'</p>';
 	}
-	echo '<input name="user_name" type="text" id="user_name" value="'. esc_attr($user_name) .'" maxlength="60" /><br />';
+	echo '<input name="user_name" type="text" id="user_name" value="' . esc_attr( $user_name ) . '" required="required" autofocus="autofocus" maxlength="60" /><br />';
 	_e( '(Must be at least 4 characters, letters and numbers only.)' );
 	?>
 
@@ -226,7 +226,7 @@ function show_user_form($user_name = '', $user_email = '', $errors = '') {
 	<?php if ( $errmsg = $errors->get_error_message('user_email') ) { ?>
 		<p class="error"><?php echo $errmsg ?></p>
 	<?php } ?>
-	<input name="user_email" type="email" id="user_email" value="<?php  echo esc_attr($user_email) ?>" maxlength="200" /><br /><?php _e('We send your registration email to this address. (Double-check your email address before continuing.)') ?>
+	<input name="user_email" type="email" id="user_email" value="<?php echo esc_attr( $user_email ); ?>" required="required" maxlength="200" /><br /><?php _e( 'We send your registration email to this address. (Double-check your email address before continuing.)' ); ?>
 	<?php
 	if ( $errmsg = $errors->get_error_message('generic') ) {
 		echo '<p class="error">' . $errmsg . '</p>';