diff --git a/src/MicroweberPackages/Helper/XSSClean.php b/src/MicroweberPackages/Helper/XSSClean.php
index 6cac2b9ebff..59bd9ed6162 100644
--- a/src/MicroweberPackages/Helper/XSSClean.php
+++ b/src/MicroweberPackages/Helper/XSSClean.php
@@ -120,6 +120,7 @@ public function clean($html)
             'onauxclick',
             'onbeforecopy',
             'onbeforecut',
+            'onbeforeinput',
             'onblur',
             'onchange',
             'onclick',