diff --git a/application/Espo/Classes/Cleanup/Stars.php b/application/Espo/Classes/Cleanup/Stars.php
new file mode 100644
index 0000000000..028b2190ee
--- /dev/null
+++ b/application/Espo/Classes/Cleanup/Stars.php
@@ -0,0 +1,138 @@
+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2024 Yurii Kuznietsov, Taras Machyshyn, Oleksii Avramenko
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Classes\Cleanup;
+
+use Espo\Core\Cleanup\Cleanup;
+use Espo\Core\Utils\Acl\UserAclManagerProvider;
+use Espo\Entities\StarSubscription;
+use Espo\Entities\User;
+use Espo\ORM\EntityManager;
+use Espo\ORM\Query\DeleteBuilder;
+use Espo\Tools\Stars\StarService;
+
+/**
+ * @noinspection PhpUnused
+ */
+class Stars implements Cleanup
+{
+    public function __construct(
+        private EntityManager $entityManager,
+        private UserAclManagerProvider $userAclManagerProvider,
+        private StarService $service
+    ) {}
+
+    public function process(): void
+    {
+        foreach ($this->getEntityTypeList() as $entityType) {
+            $this->processEntityType($entityType);
+        }
+    }
+
+    /**
+     * @return string[]
+     */
+    private function getEntityTypeList(): array
+    {
+        $groups = $this->entityManager->getRDBRepositoryByClass(StarSubscription::class)
+            ->group('entityType')
+            ->select('entityType')
+            ->find();
+
+        $list = [];
+
+        foreach ($groups as $group) {
+            $list[] = $group->get('entityType');
+        }
+
+        return $list;
+    }
+
+    private function processEntityType(string $entityType): void
+    {
+        if (
+            !$this->service->isEnabled($entityType) ||
+            !$this->entityManager->hasRepository($entityType)
+        ) {
+            $deleteQuery = DeleteBuilder::create()
+                ->from(StarSubscription::ENTITY_TYPE)
+                ->where(['entityType' => $entityType])
+                ->build();
+
+            $this->entityManager->getQueryExecutor()->execute($deleteQuery);
+
+            return;
+        }
+
+        $stars = $this->entityManager
+            ->getRDBRepositoryByClass(StarSubscription::class)
+            ->where(['entityType' => $entityType])
+            ->sth()
+            ->find();
+
+        foreach ($stars as $star) {
+            $entityId = $star->get('entityId');
+            $userId = $star->get('userId');
+
+            if ($userId === null || $entityId === null) {
+                // @todo Cleanup.
+                continue;
+            }
+
+            $entity = $this->entityManager->getEntityById($entityType, $entityId);
+            $user = $this->entityManager->getRDBRepositoryByClass(User::class)->getById($userId);
+
+            if (!$entity || !$user) {
+                $this->unstar($userId, $entityType, $entityId);
+
+                continue;
+            }
+
+            $aclManager = $this->userAclManagerProvider->get($user);
+
+            if (!$aclManager->checkEntityRead($user, $entity)) {
+                $this->unstar($userId, $entityType, $entityId);
+            }
+        }
+    }
+
+    private function unstar(string $userId, string $entityType, string $entityId): void
+    {
+        $deleteQuery = DeleteBuilder::create()
+            ->from(StarSubscription::ENTITY_TYPE)
+            ->where([
+                'userId' => $userId,
+                'entityType' => $entityType,
+                'entityId' => $entityId,
+            ])
+            ->build();
+
+        $this->entityManager->getQueryExecutor()->execute($deleteQuery);
+    }
+}
diff --git a/application/Espo/Resources/metadata/app/cleanup.json b/application/Espo/Resources/metadata/app/cleanup.json
index 4508497fc6..ed90e1cc5c 100644
--- a/application/Espo/Resources/metadata/app/cleanup.json
+++ b/application/Espo/Resources/metadata/app/cleanup.json
@@ -24,5 +24,8 @@
     },
     "audit": {
         "className": "Espo\\Classes\\Cleanup\\Audit"
+    },
+    "stars": {
+        "className": "Espo\\Classes\\Cleanup\\Stars"
     }
 }