diff --git a/app/Http/Controllers/SiteController.php b/app/Http/Controllers/SiteController.php
index 01c212717..2563acbbf 100644
--- a/app/Http/Controllers/SiteController.php
+++ b/app/Http/Controllers/SiteController.php
@@ -109,6 +109,7 @@ class SiteController extends Controller
 
     public function redirectUrl(Request $request)
     {
+        abort_if(!$request->user(), 404);
         $this->validate($request, [
             'url' => 'required|url'
         ]);