diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-admin/edit-tag-form.php
--- a/wp/wp-admin/edit-tag-form.php	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-admin/edit-tag-form.php	Fri Sep 05 18:40:08 2025 +0200
@@ -44,11 +44,7 @@
 	do_action_deprecated( 'edit_tag_form_pre', array( $tag ), '3.0.0', '{$taxonomy}_pre_edit_form' );
 }
 
-/**
- * Use with caution, see https://developer.wordpress.org/reference/functions/wp_reset_vars/
- */
-wp_reset_vars( array( 'wp_http_referer' ) );
-
+$wp_http_referer = ! empty( $_REQUEST['wp_http_referer'] ) ? sanitize_text_field( $_REQUEST['wp_http_referer'] ) : '';
 $wp_http_referer = remove_query_arg( array( 'action', 'message', 'tag_ID' ), $wp_http_referer );
 
 // Also used by Edit Tags.
@@ -79,16 +75,18 @@
 $class = ( isset( $msg ) && 5 === $msg ) ? 'error' : 'success';
 
 if ( $message ) {
-	?>
-<div id="message" class="notice notice-<?php echo $class; ?>">
-	<p><strong><?php echo $message; ?></strong></p>
-	<?php if ( $wp_http_referer ) { ?>
-	<p><a href="<?php echo esc_url( wp_validate_redirect( esc_url_raw( $wp_http_referer ), admin_url( 'term.php?taxonomy=' . $taxonomy ) ) ); ?>">
-		<?php echo esc_html( $tax->labels->back_to_items ); ?>
-	</a></p>
-	<?php } ?>
-</div>
-	<?php
+	$message = '<p><strong>' . $message . '</strong></p>';
+	if ( $wp_http_referer ) {
+		$message .= '<p><a href="' . esc_url( wp_validate_redirect( sanitize_url( $wp_http_referer ), admin_url( 'term.php?taxonomy=' . $taxonomy ) ) ) . '">' . esc_html( $tax->labels->back_to_items ) . '</a></p>';
+	}
+	wp_admin_notice(
+		$message,
+		array(
+			'type'           => $class,
+			'id'             => 'message',
+			'paragraph_wrap' => false,
+		)
+	);
 }
 ?>
 
@@ -145,10 +143,9 @@
 	<table class="form-table" role="presentation">
 		<tr class="form-field form-required term-name-wrap">
 			<th scope="row"><label for="name"><?php _ex( 'Name', 'term name' ); ?></label></th>
-			<td><input name="name" id="name" type="text" value="<?php echo $tag_name_value; ?>" size="40" aria-required="true" />
-			<p class="description"><?php echo $tax->labels->name_field_description; ?></p></td>
+			<td><input name="name" id="name" type="text" value="<?php echo $tag_name_value; ?>" size="40" aria-required="true" aria-describedby="name-description" />
+			<p class="description" id="name-description"><?php echo $tax->labels->name_field_description; ?></p></td>
 		</tr>
-<?php if ( ! global_terms_enabled() ) { ?>
 		<tr class="form-field term-slug-wrap">
 			<th scope="row"><label for="slug"><?php _e( 'Slug' ); ?></label></th>
 			<?php
@@ -167,10 +164,9 @@
 			 */
 			$slug = isset( $tag->slug ) ? apply_filters( 'editable_slug', $tag->slug, $tag ) : '';
 			?>
-			<td><input name="slug" id="slug" type="text" value="<?php echo esc_attr( $slug ); ?>" size="40" />
-			<p class="description"><?php echo $tax->labels->slug_field_description; ?></p></td>
+			<td><input name="slug" id="slug" type="text" value="<?php echo esc_attr( $slug ); ?>" size="40" aria-describedby="slug-description" />
+			<p class="description" id="slug-description"><?php echo $tax->labels->slug_field_description; ?></p></td>
 		</tr>
-<?php } ?>
 <?php if ( is_taxonomy_hierarchical( $taxonomy ) ) : ?>
 		<tr class="form-field term-parent-wrap">
 			<th scope="row"><label for="parent"><?php echo esc_html( $tax->labels->parent_item ); ?></label></th>
@@ -186,6 +182,7 @@
 					'exclude_tree'     => $tag->term_id,
 					'hierarchical'     => true,
 					'show_option_none' => __( 'None' ),
+					'aria_describedby' => 'parent-description',
 				);
 
 				/** This filter is documented in wp-admin/edit-tags.php */
@@ -193,17 +190,17 @@
 				wp_dropdown_categories( $dropdown_args );
 				?>
 				<?php if ( 'category' === $taxonomy ) : ?>
-					<p class="description"><?php _e( 'Categories, unlike tags, can have a hierarchy. You might have a Jazz category, and under that have children categories for Bebop and Big Band. Totally optional.' ); ?></p>
+					<p class="description" id="parent-description"><?php _e( 'Categories, unlike tags, can have a hierarchy. You might have a Jazz category, and under that have children categories for Bebop and Big Band. Totally optional.' ); ?></p>
 				<?php else : ?>
-					<p class="description"><?php echo $tax->labels->parent_field_description; ?></p>
+					<p class="description" id="parent-description"><?php echo $tax->labels->parent_field_description; ?></p>
 				<?php endif; ?>
 			</td>
 		</tr>
 <?php endif; // is_taxonomy_hierarchical() ?>
 		<tr class="form-field term-description-wrap">
 			<th scope="row"><label for="description"><?php _e( 'Description' ); ?></label></th>
-			<td><textarea name="description" id="description" rows="5" cols="50" class="large-text"><?php echo $tag->description; // textarea_escaped ?></textarea>
-			<p class="description"><?php echo $tax->labels->desc_field_description; ?></p></td>
+			<td><textarea name="description" id="description" rows="5" cols="50" class="large-text" aria-describedby="description-description"><?php echo $tag->description; // textarea_escaped ?></textarea>
+			<p class="description" id="description-description"><?php echo $tax->labels->desc_field_description; ?></p></td>
 		</tr>
 		<?php
 		// Back compat hooks.