2 files changed, 5 insertions, 11 deletions
diff --git a/lib/classes/JsonApi/Routes/InstituteMemberships/ByUserIndex.php b/lib/classes/JsonApi/Routes/InstituteMemberships/ByUserIndex.php
index 2fd9833..c7612e1 100644
--- a/lib/classes/JsonApi/Routes/InstituteMemberships/ByUserIndex.php
+++ b/lib/classes/JsonApi/Routes/InstituteMemberships/ByUserIndex.php
@@ -5,9 +5,9 @@ namespace JsonApi\Routes\InstituteMemberships;
 use JsonApi\Errors\AuthorizationFailedException;
 use JsonApi\Errors\RecordNotFoundException;
 use JsonApi\JsonApiController;
+use JsonApi\Routes\Users\Authority;
 use Psr\Http\Message\ResponseInterface as Response;
 use Psr\Http\Message\ServerRequestInterface as Request;
-use JsonApi\Routes\Institutes\Authority;
 
 class ByUserIndex extends JsonApiController
 {
@@ -24,11 +24,14 @@ class ByUserIndex extends JsonApiController
             throw new RecordNotFoundException();
         }
 
-        if (!Authority::canIndexInstitutesOfUser($this->getUser($request), $user)) {
+        if (!Authority::canShowUser($this->getUser($request), $user)) {
             throw new AuthorizationFailedException();
         }
 
         $institutes = $user->institute_memberships;
+        if (!$GLOBALS['perm']->have_profile_perm('user', $user->id)) {
+            $institutes = $institutes->filter(fn($membership) => $membership->inst_perms !== 'user');
+        }
         $total = count($institutes);
         list($offset, $limit) = $this->getOffsetAndLimit();
 
diff --git a/lib/classes/JsonApi/Routes/Institutes/Authority.php b/lib/classes/JsonApi/Routes/Institutes/Authority.php
index c6ee43b..91dc573 100644
--- a/lib/classes/JsonApi/Routes/Institutes/Authority.php
+++ b/lib/classes/JsonApi/Routes/Institutes/Authority.php
@@ -14,13 +14,4 @@ class Authority
     {
         return $GLOBALS['perm']->have_studip_perm('admin', $institute->id, $user->id);
     }
-
-    /**
-     * @SuppressWarnings(PHPMD.Superglobals)
-     */
-    public static function canIndexInstitutesOfUser(User $observer, User $user)
-    {
-        return $GLOBALS['perm']->have_perm('admin', $observer->id)
-            || $observer->id === $user->id;
-    }
 }