diff --git a/vendor/magento/module-gift-registry/Controller/View.php b/vendor/magento/module-gift-registry/Controller/View.php
index 32d921f66754..6807f327406e 100644
--- a/vendor/magento/module-gift-registry/Controller/View.php
+++ b/vendor/magento/module-gift-registry/Controller/View.php
@@ -7,6 +7,12 @@
 
 use Magento\Framework\Exception\NotFoundException;
 use Magento\Framework\App\RequestInterface;
+use Magento\Framework\App\Action\Context;
+use Magento\Framework\Registry;
+use Magento\GiftRegistry\Model\Entity;
+use Magento\GiftRegistry\Model\EntityFactory;
+use Magento\Framework\App\ObjectManager;
+use Magento\GiftRegistry\Helper\Data;
 
 /**
  * Gift registry frontend controller
@@ -14,21 +20,28 @@
 abstract class View extends \Magento\Framework\App\Action\Action
 {
     /**
-     * Core registry
-     *
-     * @var \Magento\Framework\Registry
+     * @var Registry
      */
     protected $_coreRegistry = null;
 
     /**
-     * @param \Magento\Framework\App\Action\Context $context
-     * @param \Magento\Framework\Registry $coreRegistry
+     * @var Entity
+     */
+    protected $_entity;
+
+    /**
+     * @param Context $context
+     * @param Registry $coreRegistry
+     * @param EntityFactory|null $entityFactory
      */
     public function __construct(
-        \Magento\Framework\App\Action\Context $context,
-        \Magento\Framework\Registry $coreRegistry
+        Context $context,
+        Registry $coreRegistry,
+        ?EntityFactory $entityFactory = null
     ) {
         $this->_coreRegistry = $coreRegistry;
+        $entityFactory = $entityFactory ?? ObjectManager::getInstance()->get(EntityFactory::class);
+        $this->_entity = $entityFactory->create();
         parent::__construct($context);
     }
 
@@ -42,6 +55,6 @@ public function __construct(
     public function dispatch(RequestInterface $request)
     {
-        if (!$this->_objectManager->get(\Magento\GiftRegistry\Helper\Data::class)->isEnabled()) {
+        if (!$this->_objectManager->get(Data::class)->isEnabled()) {
             throw new NotFoundException(__('Page not found.'));
         }
         return parent::dispatch($request);
diff --git a/vendor/magento/module-gift-registry/Controller/View/AddToCart.php b/vendor/magento/module-gift-registry/Controller/View/AddToCart.php
index 47d900ce5130..a41d7b35a768 100644
--- a/vendor/magento/module-gift-registry/Controller/View/AddToCart.php
+++ b/vendor/magento/module-gift-registry/Controller/View/AddToCart.php
@@ -7,36 +7,53 @@
 namespace Magento\GiftRegistry\Controller\View;
 
-class AddToCart extends \Magento\GiftRegistry\Controller\View
+use Magento\Framework\App\Action\HttpPostActionInterface;
+use Magento\Checkout\Model\Cart;
+use Magento\GiftRegistry\Model\Item;
+use Magento\GiftRegistry\Model\Item\Option;
+use Magento\Framework\Exception\LocalizedException;
+use Exception;
+use Psr\Log\LoggerInterface;
+
+class AddToCart extends \Magento\GiftRegistry\Controller\View implements HttpPostActionInterface
 {
     /**
      * Add specified gift registry items to quote
      *
      * @return void
      * @SuppressWarnings(PHPMD.CyclomaticComplexity)
      */
     public function execute()
     {
+        $entity = $this->_entity->loadByUrlKey($this->getRequest()->getParam('id'));
+        if (!$entity->getId() || !$entity->getCustomerId() || !$entity->getTypeId() || !$entity->getIsActive()) {
+            $this->_forward('noroute');
+            return;
+        }
         $items = $this->getRequest()->getParam('items');
         if (!$items) {
             $this->_redirect('*/*', ['_current' => true]);
             return;
         }
-        /* @var \Magento\Checkout\Model\Cart */
-        $cart = $this->_objectManager->get(\Magento\Checkout\Model\Cart::class);
+        $cart = $this->_objectManager->get(Cart::class);
 
         $success = false;
 
         try {
             $count = 0;
             foreach ($items as $itemId => $itemInfo) {
-                $item = $this->_objectManager->create(\Magento\GiftRegistry\Model\Item::class)->load($itemId);
+                $item = $this->_objectManager->create(Item::class)->load($itemId);
                 $optionCollection = $this->_objectManager->create(
-                    \Magento\GiftRegistry\Model\Item\Option::class
+                    Option::class
                 )->getCollection()->addItemFilter(
                     $itemId
                 );
                 $item->setOptions($optionCollection->getOptionsByItem($item));
-                if (!$item->getId() || $itemInfo['qty'] < 1 || $item->getQty() <= $item->getQtyFulfilled()) {
+                if (!$item->getId()
+                    || (int)$item->getEntityId() !== (int)$entity->getId()
+                    || !isset($itemInfo['qty'])
+                    || $itemInfo['qty'] < 1
+                    || $item->getQty() <= $item->getQtyFulfilled()
+                ) {
                     continue;
                 }
                 $item->addToCart($cart, $itemInfo['qty']);
@@ -48,11 +65,11 @@ public function execute()
                 $success = false;
                 $this->messageManager->addError(__('Please enter the quantity of items to add to cart.'));
             }
-        } catch (\Magento\Framework\Exception\LocalizedException $e) {
+        } catch (LocalizedException $e) {
             $this->messageManager->addError(__($e->getMessage()));
-        } catch (\Exception $e) {
+        } catch (Exception $e) {
             $this->messageManager->addException($e, __('We can\'t add this item to your shopping cart right now.'));
-            $this->_objectManager->get(\Psr\Log\LoggerInterface::class)->critical($e);
+            $this->_objectManager->get(LoggerInterface::class)->critical($e);
         }
         if (!$success) {
             $this->_redirect('*/*', ['_current' => true]);
diff --git a/vendor/magento/module-gift-registry/Controller/View/Index.php b/vendor/magento/module-gift-registry/Controller/View/Index.php
index 549f3a186f58..c7c4993fafa2 100644
--- a/vendor/magento/module-gift-registry/Controller/View/Index.php
+++ b/vendor/magento/module-gift-registry/Controller/View/Index.php
@@ -7,6 +7,9 @@
 namespace Magento\GiftRegistry\Controller\View;
 
-class Index extends \Magento\GiftRegistry\Controller\View
+use Magento\Customer\Model\Customer;
+use Magento\Framework\App\Action\HttpGetActionInterface;
+
+class Index extends \Magento\GiftRegistry\Controller\View implements HttpGetActionInterface
 {
     /**
      * View giftregistry list in 'My Account' section
@@ -16,14 +19,13 @@ class Index extends \Magento\GiftRegistry\Controller\View
     public function execute()
     {
-        $entity = $this->_objectManager->create(\Magento\GiftRegistry\Model\Entity::class);
-        $entity->loadByUrlKey($this->getRequest()->getParam('id'));
+        $entity = $this->_entity->loadByUrlKey($this->getRequest()->getParam('id'));
         if (!$entity->getId() || !$entity->getCustomerId() || !$entity->getTypeId() || !$entity->getIsActive()) {
             $this->_forward('noroute');
             return;
         }
 
-        /** @var \Magento\Customer\Model\Customer */
-        $customer = $this->_objectManager->create(\Magento\Customer\Model\Customer::class);
+        /** @var Customer */
+        $customer = $this->_objectManager->create(Customer::class);
         $customer->load($entity->getCustomerId());
         $entity->setCustomer($customer);
         $this->_coreRegistry->register('current_entity', $entity);