diff --git a/core/modules/dblog/src/Controller/DbLogController.php b/core/modules/dblog/src/Controller/DbLogController.php
index e8b1ba5..335f6ff 100644
--- a/core/modules/dblog/src/Controller/DbLogController.php
+++ b/core/modules/dblog/src/Controller/DbLogController.php
@@ -263,7 +263,7 @@ public function eventDetails($event_id) {
         ),
         array(
           array('data' => $this->t('Message'), 'header' => TRUE),
-          $message,
+          Xss::filterAdmin($message),
         ),
         array(
           array('data' => $this->t('Severity'), 'header' => TRUE),