diff --git a/wp-admin/includes/class-wp-site-health.php b/wp-admin/includes/class-wp-site-health.php
index d0de043789..f20bc947c3 100644
--- a/wp-admin/includes/class-wp-site-health.php
+++ b/wp-admin/includes/class-wp-site-health.php
@@ -1969,7 +1969,7 @@ class WP_Site_Health {
 					/* translators: 1: The HTTP error code. 2: The HTTP error message. */
 					__( 'The REST API call gave the following unexpected result: (%1$d) %2$s.' ),
 					wp_remote_retrieve_response_code( $r ),
-					wp_remote_retrieve_body( $r )
+					esc_html( wp_remote_retrieve_body( $r ) )
 				)
 			);
 		} else {
diff --git a/wp-includes/version.php b/wp-includes/version.php
index e16d0ed1ea..97d0466987 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-beta3-48607';
+$wp_version = '5.5-beta3-48608';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.