diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-includes/widgets/class-wp-widget-media-video.php
--- a/wp/wp-includes/widgets/class-wp-widget-media-video.php	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-includes/widgets/class-wp-widget-media-video.php	Fri Sep 05 18:40:08 2025 +0200
@@ -228,17 +228,35 @@
 		?>
 		<script type="text/html" id="tmpl-wp-media-widget-video-preview">
 			<# if ( data.error && 'missing_attachment' === data.error ) { #>
-				<div class="notice notice-error notice-alt notice-missing-attachment">
-					<p><?php echo $this->l10n['missing_attachment']; ?></p>
-				</div>
+				<?php
+				wp_admin_notice(
+					$this->l10n['missing_attachment'],
+					array(
+						'type'               => 'error',
+						'additional_classes' => array( 'notice-alt', 'notice-missing-attachment' ),
+					)
+				);
+				?>
 			<# } else if ( data.error && 'unsupported_file_type' === data.error ) { #>
-				<div class="notice notice-error notice-alt notice-missing-attachment">
-					<p><?php echo $this->l10n['unsupported_file_type']; ?></p>
-				</div>
+				<?php
+				wp_admin_notice(
+					$this->l10n['unsupported_file_type'],
+					array(
+						'type'               => 'error',
+						'additional_classes' => array( 'notice-alt', 'notice-missing-attachment' ),
+					)
+				);
+				?>
 			<# } else if ( data.error ) { #>
-				<div class="notice notice-error notice-alt">
-					<p><?php _e( 'Unable to preview media due to an unknown error.' ); ?></p>
-				</div>
+				<?php
+				wp_admin_notice(
+					__( 'Unable to preview media due to an unknown error.' ),
+					array(
+						'type'               => 'error',
+						'additional_classes' => array( 'notice-alt' ),
+					)
+				);
+				?>
 			<# } else if ( data.is_oembed && data.model.poster ) { #>
 				<a href="{{ data.model.src }}" target="_blank" class="media-widget-video-link">
 					<img src="{{ data.model.poster }}" />