diff --git a/typo3/sysext/backend/Configuration/Backend/AjaxRoutes.php b/typo3/sysext/backend/Configuration/Backend/AjaxRoutes.php
index bf71f7053e2fc6e5c05a8469765bda6f91bcba33..604f8b75224111f39c061d92dbb4906597fd59d8 100644
--- a/typo3/sysext/backend/Configuration/Backend/AjaxRoutes.php
+++ b/typo3/sysext/backend/Configuration/Backend/AjaxRoutes.php
@@ -136,7 +136,8 @@ return [
 	// ExtDirect routing
 	'ext_direct_route' => [
 		'path' => '/ext-direct/route',
-		'target' => \TYPO3\CMS\Core\ExtDirect\ExtDirectRouter::class . '::routeAction'
+		'target' => \TYPO3\CMS\Core\ExtDirect\ExtDirectRouter::class . '::routeAction',
+		'access' => 'public'
 	],
 
 	// ExtDirect API