diff --git a/wp-includes/user.php b/wp-includes/user.php
index 73c3f3c2fe..3d940e16e9 100644
--- a/wp-includes/user.php
+++ b/wp-includes/user.php
@@ -2973,12 +2973,6 @@ function _wp_privacy_send_request_confirmation_notification( $request_id ) {
 		return;
 	}
 
-	$subject = sprintf(
-		/* translators: %s Site name. */
-		__( '[%s] Action Confirmed' ),
-		wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES )
-	);
-
 	$manage_url = add_query_arg( 'page', $request_data->action_name, admin_url( 'tools.php' ) );
 
 	/**
@@ -3049,6 +3043,7 @@ All at ###SITENAME###
 	 *     @type string          $manage_url  The link to click manage privacy requests of this type.
 	 *     @type string          $sitename    The site name sending the mail.
 	 *     @type string          $siteurl     The site URL sending the mail.
+	 *     @type string          $admin_email The administrator email receiving the mail.
 	 * }
 	 */
 	$content = apply_filters( 'user_confirmed_action_email_content', $email_text, $email_data );
@@ -3059,6 +3054,35 @@ All at ###SITENAME###
 	$content = str_replace( '###MANAGE_URL###', esc_url_raw( $email_data['manage_url'] ), $content );
 	$content = str_replace( '###SITEURL###', esc_url_raw( $email_data['siteurl'] ), $content );
 
+	$blogname = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
+
+	$subject = sprintf(
+		/* translators: %s Site name. */
+		__( '[%s] Action Confirmed' ),
+		$blogname
+	);
+
+	/**
+	 * Filters the subject of the user request confirmation email.
+	 *
+	 * @since 4.9.7
+	 *
+	 * @param string $subject    The email subject.
+	 * @param string $blogname   The name of the site.
+	 * @param array  $email_data {
+	 *     Data relating to the account action email.
+	 *
+	 *     @type WP_User_Request $request     User request object.
+	 *     @type string          $user_email  The email address confirming a request
+	 *     @type string          $description Description of the action being performed so the user knows what the email is for.
+	 *     @type string          $manage_url  The link to click manage privacy requests of this type.
+	 *     @type string          $sitename    The site name sending the mail.
+	 *     @type string          $siteurl     The site URL sending the mail.
+	 *     @type string          $admin_email The administrator email receiving the mail.
+	 * }
+	 */
+	$subject = apply_filters( 'user_request_confirmed_email_subject', $subject, $blogname, $email_data );
+
 	$email_sent = wp_mail( $email_data['admin_email'], $subject, $content );
 
 	if ( $email_sent ) {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index beb4abf6e8..7f77cefc4d 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.0-alpha-43371';
+$wp_version = '5.0-alpha-43373';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.