diff --git a/src/wp-admin/includes/class-wp-plugin-install-list-table.php b/src/wp-admin/includes/class-wp-plugin-install-list-table.php
index 5df06f48fc..bcb2ff6cc7 100644
--- a/src/wp-admin/includes/class-wp-plugin-install-list-table.php
+++ b/src/wp-admin/includes/class-wp-plugin-install-list-table.php
@@ -402,14 +402,14 @@ class WP_Plugin_Install_List_Table extends WP_List_Table {
 					case 'install':
 						if ( $status['url'] ) {
 							/* translators: 1: Plugin name and version. */
-							$action_links[] = '<a class="install-now button" data-slug="' . esc_attr( $plugin['slug'] ) . '" href="' . esc_url( $status['url'] ) . '" aria-label="' . esc_attr( sprintf( __( 'Install %s now' ), $name ) ) . '">' . __( 'Install Now' ) . '</a>';
+							$action_links[] = '<a class="install-now button" data-slug="' . esc_attr( $plugin['slug'] ) . '" href="' . esc_url( $status['url'] ) . '" aria-label="' . esc_attr( sprintf( __( 'Install %s now' ), $name ) ) . '" data-name="' . esc_attr( $name ) . '">' . __( 'Install Now' ) . '</a>';
 						}
 
 						break;
 					case 'update_available':
 						if ( $status['url'] ) {
 							/* translators: 1: Plugin name and version */
-							$action_links[] = '<a class="update-now button" data-plugin="' . esc_attr( $status['file'] ) . '" data-slug="' . esc_attr( $plugin['slug'] ) . '" href="' . esc_url( $status['url'] ) . '" aria-label="' . esc_attr( sprintf( __( 'Update %s now' ), $name ) ) . '">' . __( 'Update Now' ) . '</a>';
+							$action_links[] = '<a class="update-now button" data-plugin="' . esc_attr( $status['file'] ) . '" data-slug="' . esc_attr( $plugin['slug'] ) . '" href="' . esc_url( $status['url'] ) . '" aria-label="' . esc_attr( sprintf( __( 'Update %s now' ), $name ) ) . '" data-name="' . esc_attr( $name ) . '">' . __( 'Update Now' ) . '</a>';
 						}
 
 						break;
diff --git a/src/wp-admin/js/updates.js b/src/wp-admin/js/updates.js
index 1540193967..7f5f3b413d 100644
--- a/src/wp-admin/js/updates.js
+++ b/src/wp-admin/js/updates.js
@@ -33,7 +33,7 @@ window.wp = window.wp || {};
 	/**
 	 * Filesystem credentials to be packaged along with the request.
 	 *
-	 * @since  4.2.0
+	 * @since 4.2.0
 	 *
 	 * @var object
 	 */
@@ -96,10 +96,10 @@ window.wp = window.wp || {};
 	 */
 	wp.updates.decrementCount = function( upgradeType ) {
 		var count,
-		    pluginCount,
-		    $adminBarUpdateCount = $( '#wp-admin-bar-updates .ab-label' ),
-		    $dashboardNavMenuUpdateCount = $( 'a[href="update-core.php"] .update-plugins' ),
-		    $pluginsMenuItem = $( '#menu-plugins' );
+			pluginCount,
+			$adminBarUpdateCount = $( '#wp-admin-bar-updates .ab-label' ),
+			$dashboardNavMenuUpdateCount = $( 'a[href="update-core.php"] .update-plugins' ),
+			$pluginsMenuItem = $( '#menu-plugins' );
 
 
 		count = $adminBarUpdateCount.text();
@@ -145,11 +145,13 @@ window.wp = window.wp || {};
 	 * @param {string} slug
 	 */
 	wp.updates.updatePlugin = function( plugin, slug ) {
-		var $message;
+		var $message, name;
 		if ( 'plugins' === pagenow || 'plugins-network' === pagenow ) {
 			$message = $( '[data-slug="' + slug + '"]' ).next().find( '.update-message' );
 		} else if ( 'plugin-install' === pagenow ) {
 			$message = $( '.plugin-card-' + slug ).find( '.update-now' );
+			name = $message.data( 'name' );
+			$message.attr( 'aria-label', wp.updates.l10n.updatingLabel.replace( '%s', name ) );
 		}
 
 		$message.addClass( 'updating-message' );
@@ -198,14 +200,14 @@ window.wp = window.wp || {};
 	 * @param {object} response
 	 */
 	wp.updates.updateSuccess = function( response ) {
-		var $updateMessage;
+		var $updateMessage, name, $pluginRow, newText;
 		if ( 'plugins' === pagenow || 'plugins-network' === pagenow ) {
-			var $pluginRow = $( '[data-slug="' + response.slug + '"]' ).first();
+			$pluginRow = $( '[data-slug="' + response.slug + '"]' ).first();
 			$updateMessage = $pluginRow.next().find( '.update-message' );
 			$pluginRow.addClass( 'updated' ).removeClass( 'update' );
 
 			// Update the version number in the row.
-			var newText = $pluginRow.find('.plugin-version-author-uri').html().replace( response.oldVersion, response.newVersion );
+			newText = $pluginRow.find('.plugin-version-author-uri').html().replace( response.oldVersion, response.newVersion );
 			$pluginRow.find('.plugin-version-author-uri').html( newText );
 
 			// Add updated class to update message parent tr
@@ -213,6 +215,8 @@ window.wp = window.wp || {};
 		} else if ( 'plugin-install' === pagenow ) {
 			$updateMessage = $( '.plugin-card-' + response.slug ).find( '.update-now' );
 			$updateMessage.addClass( 'button-disabled' );
+			name = $updateMessage.data( 'name' );
+			$updateMessage.attr( 'aria-label', wp.updates.l10n.updatedLabel.replace( '%s', name ) );
 		}
 
 		$updateMessage.removeClass( 'updating-message' ).addClass( 'updated-message' );
@@ -240,7 +244,7 @@ window.wp = window.wp || {};
 	 * @param {object} response
 	 */
 	wp.updates.updateError = function( response ) {
-		var $message;
+		var $message, name;
 		wp.updates.updateDoneSuccessfully = false;
 		if ( response.errorCode && response.errorCode == 'unable_to_connect_to_filesystem' ) {
 			wp.updates.credentialError( response, 'update-plugin' );
@@ -250,6 +254,9 @@ window.wp = window.wp || {};
 			$message = $( '[data-slug="' + response.slug + '"]' ).next().find( '.update-message' );
 		} else if ( 'plugin-install' === pagenow ) {
 			$message = $( '.plugin-card-' + response.slug ).find( '.update-now' );
+
+			name = $message.data( 'name' );
+			$message.attr( 'aria-label', wp.updates.l10n.updateFailedLabel.replace( '%s', name ) );
 		}
 		$message.removeClass( 'updating-message' );
 		$message.text( wp.updates.l10n.updateFailed );
diff --git a/src/wp-includes/script-loader.php b/src/wp-includes/script-loader.php
index 29a3cdf204..883eadd0e5 100644
--- a/src/wp-includes/script-loader.php
+++ b/src/wp-includes/script-loader.php
@@ -525,12 +525,18 @@ function wp_default_scripts( &$scripts ) {
 		did_action( 'init' ) && $scripts->localize( 'updates', '_wpUpdatesSettings', array(
 			'ajax_nonce' => wp_create_nonce( 'updates' ),
 			'l10n'       => array(
-				'updating'      => __( 'Updating...' ),
-				'updated'       => __( 'Updated!' ),
-				'updateFailed'  => __( 'Update failed.' ),
-				'updatingMsg'   => __( 'Updating... please wait.' ),
-				'updatedMsg'    => __( 'Update completed successfully.' ),
-				'updateCancel'  => __( 'Update canceled' ),
+				'updating'          => __( 'Updating...' ),
+				'updated'           => __( 'Updated!' ),
+				'updateFailed'      => __( 'Update Failed' ),
+				/* translators: Plugin Name */
+				'updatingLabel'     => __( 'Updating %s...' ),
+				/* translators: Plugin Name */
+				'updatedLabel'      => __( '%s updated!' ),
+				/* translators: Plugin Name */
+				'updateFailedLabel' => __( '%s update failed' ),
+				'updatingMsg'       => __( 'Updating... please wait.' ),
+				'updatedMsg'        => __( 'Update completed successfully.' ),
+				'updateCancel'      => __( 'Update canceled.' ),
 			)
 		) );