Ticket #50588: 50588.diff

src/wp-admin/includes/class-wp-site-health.php

@@ -1969 +1969 @@
                                         /* 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 {