Index: wp-admin/edit-form-advanced.php
===================================================================
--- wp-admin/edit-form-advanced.php	(revision 21575)
+++ wp-admin/edit-form-advanced.php	(working copy)
@@ -283,7 +283,7 @@
 <div id="titlediv">
 <div id="titlewrap">
 	<label class="hide-if-no-js" style="visibility:hidden" id="title-prompt-text" for="title"><?php echo apply_filters( 'enter_title_here', __( 'Enter title here' ), $post ); ?></label>
-	<input type="text" name="post_title" size="30" value="<?php echo esc_attr( htmlspecialchars( $post->post_title ) ); ?>" id="title" autocomplete="off" />
+	<input type="text" name="post_title" size="30" value="<?php echo esc_attr( htmlspecialchars( $post->post_title ) ); ?>" id="title" aria-describedby="title-prompt-text" autocomplete="off" />
 </div>
 <div class="inside">
 <?php
Index: wp-includes/class-wp-editor.php
===================================================================
--- wp-includes/class-wp-editor.php	(revision 21575)
+++ wp-includes/class-wp-editor.php	(working copy)
@@ -680,7 +680,7 @@
 	<div id="wp-fullscreen-wrap" style="width:<?php echo $dfw_width; ?>px;">
 		<?php if ( post_type_supports($post->post_type, 'title') ) { ?>
 		<label id="wp-fullscreen-title-prompt-text" for="wp-fullscreen-title"><?php echo apply_filters( 'enter_title_here', __( 'Enter title here' ), $post ); ?></label>
-		<input type="text" id="wp-fullscreen-title" value="" autocomplete="off" />
+		<input type="text" id="wp-fullscreen-title" aria-describedby="wp-fullscreen-title-prompt-text" value="" autocomplete="off" />
 		<?php } ?>
 
 		<div id="wp-fullscreen-container">