diff --git a/Block/Adminhtml/Template/Preview.php b/Block/Adminhtml/Template/Preview.php
index d2fdcb8e315fe..b9f090a69adac 100644
--- a/Block/Adminhtml/Template/Preview.php
+++ b/Block/Adminhtml/Template/Preview.php
@@ -15,6 +15,11 @@
  */
 class Preview extends \Magento\Backend\Block\Widget
 {
+    /**
+     * @var string
+     */
+    private const ADMIN_RESOURCE = 'Magento_Email::template';
+
     /**
      * @var \Magento\Framework\Filter\Input\MaliciousCode
      */
@@ -55,6 +60,10 @@ public function __construct(
      */
     protected function _toHtml()
     {
+        if (!$this->_authorization->isAllowed(self::ADMIN_RESOURCE)) {
+            return '';
+        }
+
         $request = $this->getRequest();
 
         $storeId = $this->getAnyStoreView()->getId();
diff --git a/Model/AbstractTemplate.php b/Model/AbstractTemplate.php
index 7c5c973c60555..7e1456859ddfe 100644
--- a/Model/AbstractTemplate.php
+++ b/Model/AbstractTemplate.php
@@ -761,6 +761,32 @@ public function getUrl(Store $store, $route = '', $params = [])
         return $url->getUrl($route, $params);
     }
 
+    /**
+     * Set template text
+     *
+     * Rejects non-string input
+     *
+     * @param mixed $value
+     * @return $this
+     */
+    public function setTemplateText($value)
+    {
+        return $this->setData('template_text', is_string($value) ? $value : '');
+    }
+
+    /**
+     * Set template styles
+     *
+     * Rejects non-string input
+     *
+     * @param mixed $value
+     * @return $this
+     */
+    public function setTemplateStyles($value)
+    {
+        return $this->setData('template_styles', is_string($value) ? $value : '');
+    }
+
     /**
      * Validate template code
      *