diff --git a/src/wp-admin/includes/class-wp-automatic-updater.php b/src/wp-admin/includes/class-wp-automatic-updater.php
index b23545dd60..2d62527a98 100644
--- a/src/wp-admin/includes/class-wp-automatic-updater.php
+++ b/src/wp-admin/includes/class-wp-automatic-updater.php
@@ -1101,23 +1101,34 @@ class WP_Automatic_Updater {
 				$body[] = __( 'These plugins failed to update:' );
 
 				foreach ( $failed_updates['plugin'] as $item ) {
+					$body_message = '';
+					$item_url     = '';
+
+					if ( ! empty( $item->item->url ) ) {
+						$item_url = ' : ' . esc_url( $item->item->url );
+					}
+
 					if ( $item->item->current_version ) {
-						$body[] = sprintf(
-							/* translators: 1: Plugin name, 2: Current version number, 3: New version number. */
-							__( '- %1$s (from version %2$s to %3$s)' ),
+						$body_message .= sprintf(
+							/* translators: 1: Plugin name, 2: Current version number, 3: New version number, 4: Plugin URL. */
+							__( '- %1$s (from version %2$s to %3$s)%4$s' ),
 							$item->name,
 							$item->item->current_version,
-							$item->item->new_version
+							$item->item->new_version,
+							$item_url
 						);
 					} else {
-						$body[] = sprintf(
-							/* translators: 1: Plugin name, 2: Version number. */
-							__( '- %1$s version %2$s' ),
+						$body_message .= sprintf(
+							/* translators: 1: Plugin name, 2: Version number, 3: Plugin URL. */
+							__( '- %1$s version %2$s%3$s' ),
 							$item->name,
-							$item->item->new_version
+							$item->item->new_version,
+							$item_url
 						);
 					}
 
+					$body[] = $body_message;
+
 					$past_failure_emails[ $item->item->plugin ] = $item->item->new_version;
 				}
 
@@ -1162,22 +1173,32 @@ class WP_Automatic_Updater {
 				$body[] = __( 'These plugins are now up to date:' );
 
 				foreach ( $successful_updates['plugin'] as $item ) {
+					$body_message = '';
+					$item_url     = '';
+
+					if ( ! empty( $item->item->url ) ) {
+						$item_url = ' : ' . esc_url( $item->item->url );
+					}
+
 					if ( $item->item->current_version ) {
-						$body[] = sprintf(
-							/* translators: 1: Plugin name, 2: Current version number, 3: New version number. */
-							__( '- %1$s (from version %2$s to %3$s)' ),
+						$body_message .= sprintf(
+							/* translators: 1: Plugin name, 2: Current version number, 3: New version number, 4: Plugin URL. */
+							__( '- %1$s (from version %2$s to %3$s)%4$s' ),
 							$item->name,
 							$item->item->current_version,
-							$item->item->new_version
+							$item->item->new_version,
+							$item_url
 						);
 					} else {
-						$body[] = sprintf(
-							/* translators: 1: Plugin name, 2: Version number. */
-							__( '- %1$s version %2$s' ),
+						$body_message .= sprintf(
+							/* translators: 1: Plugin name, 2: Version number, 3: Plugin URL. */
+							__( '- %1$s version %2$s%3$s' ),
 							$item->name,
-							$item->item->new_version
+							$item->item->new_version,
+							$item_url
 						);
 					}
+					$body[] = $body_message;
 
 					unset( $past_failure_emails[ $item->item->plugin ] );
 				}
diff --git a/tests/phpunit/tests/admin/wpAutomaticUpdater.php b/tests/phpunit/tests/admin/wpAutomaticUpdater.php
new file mode 100644
index 0000000000..65bb39db2a
--- /dev/null
+++ b/tests/phpunit/tests/admin/wpAutomaticUpdater.php
@@ -0,0 +1,575 @@
+<?php
+
+/**
+ * @group upgrade
+ *
+ * @covers WP_Automatic_Updater
+ */
+class Tests_Admin_WpAutomaticUpdater extends WP_UnitTestCase {
+	/**
+	 * An instance of WP_Automatic_Updater.
+	 *
+	 * @var WP_Automatic_Updater
+	 */
+	private static $updater;
+
+	/**
+	 * WP_Automatic_Updater::send_plugin_theme_email
+	 * made accessible.
+	 *
+	 * @var ReflectionMethod
+	 */
+	private static $send_plugin_theme_email;
+
+	/**
+	 * Sets up shared fixtures.
+	 */
+	public static function wpSetUpBeforeClass( WP_UnitTest_Factory $factory ) {
+		require_once ABSPATH . 'wp-admin/includes/class-wp-automatic-updater.php';
+		self::$updater = new WP_Automatic_Updater();
+
+		self::$send_plugin_theme_email = new ReflectionMethod( self::$updater, 'send_plugin_theme_email' );
+		self::$send_plugin_theme_email->setAccessible( true );
+	}
+
+	public function set_up() {
+		parent::set_up();
+		add_filter( 'pre_wp_mail', '__return_false' );
+	}
+
+	/**
+	 * Tests that `WP_Automatic_Updater::send_plugin_theme_email()` appends
+	 * plugin URLs.
+	 *
+	 * @ticket 53049
+	 *
+	 * @covers WP_Automatic_Updater::send_plugin_theme_email
+	 *
+	 * @dataProvider data_send_plugin_theme_email_should_append_plugin_urls
+	 *
+	 * @param string[] $urls       The URL(s) to search for. Must not be empty.
+	 * @param object[] $successful An array of successful plugin update objects.
+	 * @param object[] $failed     An array of failed plugin update objects.
+	 */
+	public function test_send_plugin_theme_email_should_append_plugin_urls( $urls, $successful, $failed ) {
+		add_filter(
+			'wp_mail',
+			function( $args ) use ( $urls ) {
+				foreach ( $urls as $url ) {
+					$this->assertStringContainsString(
+						$url,
+						$args['message'],
+						'The email message should contain ' . $url
+					);
+				}
+			}
+		);
+
+		$has_successful = ! empty( $successful );
+		$has_failed     = ! empty( $failed );
+
+		if ( ! $has_successful && ! $has_failed ) {
+			$this->markTestSkipped( 'This test requires at least one successful or failed plugin update object.' );
+		}
+
+		$type = $has_successful && $has_failed ? 'mixed' : ( ! $has_failed ? 'success' : 'fail' );
+
+		$args = array( $type, array( 'plugin' => $successful ), array( 'plugin' => $failed ) );
+		self::$send_plugin_theme_email->invokeArgs( self::$updater, $args );
+	}
+
+	/**
+	 * Data provider: Provides an array of plugin update objects that should
+	 * have their URLs appended to the email message.
+	 *
+	 * @return array
+	 */
+	public function data_send_plugin_theme_email_should_append_plugin_urls() {
+		return array(
+			'successful updates, the current version and the plugin url'       => array(
+				'urls'       => array( 'http://example.org/successful-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => 'http://example.org/successful-plugin',
+						),
+					),
+				),
+				'failed'     => array(),
+			),
+			'successful updates, no current version and the plugin url'  => array(
+				'urls'       => array( 'http://example.org/successful-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => 'http://example.org/successful-plugin',
+						),
+					),
+				),
+				'failed'     => array(),
+			),
+			'failed updates, the current version and the plugin url'       => array(
+				'urls'       => array( 'http://example.org/failed-plugin' ),
+				'successful' => array(),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => 'http://example.org/failed-plugin',
+						),
+					),
+				),
+			),
+			'failed updates, no current version and the plugin url'  => array(
+				'urls'       => array( 'http://example.org/failed-plugin' ),
+				'successful' => array(),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => 'http://example.org/failed-plugin',
+						),
+					),
+				),
+			),
+			'mixed updates, the current version and a successful plugin url' => array(
+				'urls'       => array( 'http://example.org/successful-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => 'http://example.org/successful-plugin',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+			),
+			'mixed updates, no current version and a successful plugin url'  => array(
+				'urls'       => array( 'http://example.org/successful-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => 'http://example.org/successful-plugin',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+			),
+			'mixed updates, the current version and a failed plugin url' => array(
+				'urls'       => array( 'http://example.org/failed-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => 'http://example.org/failed-plugin',
+						),
+					),
+				),
+			),
+			'mixed updates, no current version and a failed plugin url'  => array(
+				'urls'       => array( 'http://example.org/failed-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => 'http://example.org/failed-plugin',
+						),
+					),
+				),
+			),
+			'mixed updates, the current version and both successful and failed plugin urls' => array(
+				'urls'       => array(
+					'http://example.org/successful-plugin',
+					'http://example.org/failed-plugin',
+				),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => 'http://example.org/successful-plugin',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => 'http://example.org/failed-plugin',
+						),
+					),
+				),
+			),
+			'mixed updates, no current version and both successful and failed plugin urls'  => array(
+				'urls'       => array(
+					'http://example.org/successful-plugin',
+					'http://example.org/failed-plugin',
+				),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => 'http://example.org/successful-plugin',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => 'http://example.org/failed-plugin',
+						),
+					),
+				),
+			),
+		);
+	}
+
+	/**
+	 * Tests that `WP_Automatic_Updater::send_plugin_theme_email()` does not
+	 * append plugin URLs.
+	 *
+	 * @ticket 53049
+	 *
+	 * @covers WP_Automatic_Updater::send_plugin_theme_email
+	 *
+	 * @dataProvider data_send_plugin_theme_email_should_not_append_plugin_urls
+	 *
+	 * @param string[] $urls       The URL(s) to search for. Must not be empty.
+	 * @param object[] $successful An array of successful plugin update objects.
+	 * @param object[] $failed     An array of failed plugin update objects.
+	 */
+	public function test_send_plugin_theme_email_should_not_append_plugin_urls( $urls, $successful, $failed ) {
+		add_filter(
+			'wp_mail',
+			function( $args ) use ( $urls ) {
+				foreach ( $urls as $url ) {
+					$this->assertStringNotContainsString(
+						$url,
+						$args['message'],
+						'The email message should not contain ' . $url
+					);
+				}
+			}
+		);
+
+		$has_successful = ! empty( $successful );
+		$has_failed     = ! empty( $failed );
+
+		if ( ! $has_successful && ! $has_failed ) {
+			$this->markTestSkipped( 'This test requires at least one successful or failed plugin update object.' );
+		}
+
+		$type = $has_successful && $has_failed ? 'mixed' : ( ! $has_failed ? 'success' : 'fail' );
+
+		$args = array( $type, array( 'plugin' => $successful ), array( 'plugin' => $failed ) );
+		self::$send_plugin_theme_email->invokeArgs( self::$updater, $args );
+	}
+
+	/**
+	 * Data provider: Provides an array of plugin update objects that should
+	 * not have their URL appended to the email message.
+	 *
+	 * @return array
+	 */
+	public function data_send_plugin_theme_email_should_not_append_plugin_urls() {
+		return array(
+			'successful updates, the current version, but no plugin url'    => array(
+				'urls'       => array( 'http://example.org/successful-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+				'failed'     => array(),
+			),
+			'successful updates, but no current version or plugin url' => array(
+				'urls'       => array( 'http://example.org/successful-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+				'failed'     => array(),
+			),
+			'failed updates, the current version, but no plugin url'    => array(
+				'urls'       => array( 'http://example.org/failed-plugin' ),
+				'successful' => array(),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+			),
+			'failed updates, but no current version or plugin url' => array(
+				'urls'       => array( 'http://example.org/failed-plugin' ),
+				'successful' => array(),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+			),
+			'mixed updates, the current version, but no successful plugin url' => array(
+				'urls'       => array( 'http://example.org/successful-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => 'http://example.org/failed-plugin',
+						),
+					),
+				),
+			),
+			'mixed updates, but no current version or successful plugin url'  => array(
+				'urls'       => array( 'http://example.org/successful-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => 'http://example.org/failed-plugin',
+						),
+					),
+				),
+			),
+			'mixed updates, the current version, but no failed plugin url' => array(
+				'urls'       => array( 'http://example.org/failed-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => 'http://example.org/successful-plugin',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+			),
+			'mixed updates, no current version or failed plugin url'  => array(
+				'urls'       => array( 'http://example.org/failed-plugin' ),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => 'http://example.org/successful-plugin',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+			),
+			'mixed updates, the current version and no successful or failed plugin urls' => array(
+				'urls'       => array(
+					'http://example.org/successful-plugin',
+					'http://example.org/failed-plugin',
+				),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '1.0.0',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+			),
+			'mixed updates, no current version and no successful or failed plugin urls'  => array(
+				'urls'       => array(
+					'http://example.org/successful-plugin',
+					'http://example.org/failed-plugin',
+				),
+				'successful' => array(
+					(object) array(
+						'name' => 'Successful Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'successful-plugin/successful-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+				'failed'     => array(
+					(object) array(
+						'name' => 'Failed Plugin',
+						'item' => (object) array(
+							'current_version' => '',
+							'new_version'     => '2.0.0',
+							'plugin'          => 'failed-plugin/failed-plugin.php',
+							'url'             => '',
+						),
+					),
+				),
+			),
+		);
+	}
+}