Ticket #18242: 18242.patch

wp-admin/network/site-info.php

@@ -44 +44 @@
         switch_to_blog( $id );
 
         if ( isset( $_POST['update_home_url'] ) && $_POST['update_home_url'] == 'update' ) {
-                $blog_address = get_blogaddress_by_domain( $_POST['blog']['domain'], $_POST['blog']['path'] );
+                $blog_address = esc_url( $_POST['blog']['domain'] . $_POST['blog']['path'] );
                 if ( get_option( 'siteurl' ) != $blog_address )
                         update_option( 'siteurl', $blog_address );