Guest users can't access public posts from 'Latest activities

protected/humhub/docs/CHANGELOG_DEV.md

@@ -31,6 +31,7 @@ HumHub Change Log (DEVELOP)
 - Fix #3829: Guest user access to counter set freezes
 - Enh: `data-action` url now can be set as `href` attribute additionally to  `data-action-url`
 - Fix #3837: Legacy modal may freeze in case of errors
+- Fix #3796: Guest users can't access public posts from 'Latest activities'
 
 1.4.0-beta.2
 ------------

protected/humhub/modules/activity/controllers/LinkController.php

@@ -9,9 +9,9 @@
 namespace humhub\modules\activity\controllers;
 
 use Yii;
+use humhub\components\access\StrictAccess;
 use humhub\components\Controller;
 use humhub\modules\activity\models\Activity;
-use humhub\components\behaviors\AccessControl;
 use yii\web\HttpException;
 
 /**
@@ -25,15 +25,7 @@ class LinkController extends Controller
     /**
      * @inheritdoc
      */
-    public function behaviors()
-    {
-        return [
-            'acl' => [
-                'class' => AccessControl::class,
-                'guestAllowedActions' => ['info']
-            ]
-        ];
-    }
+    public $access = StrictAccess::class;
 
     /**
      * Returns the link for the given activity.