diff --git a/mod/data/classes/output/action_bar.php b/mod/data/classes/output/action_bar.php
index 483a0cde78a..9c095c17f1c 100644
--- a/mod/data/classes/output/action_bar.php
+++ b/mod/data/classes/output/action_bar.php
@@ -198,7 +198,10 @@ class action_bar {
 
         // Reset all templates action.
         $resetallurl = new moodle_url($this->currenturl);
-        $resetallurl->param('action', 'resetalltemplates');
+        $resetallurl->params([
+            'action' => 'resetalltemplates',
+            'sesskey' => sesskey(),
+        ]);
         $presetsactions->add(new \action_menu_link(
             $resetallurl,
             null,
diff --git a/mod/data/templates.php b/mod/data/templates.php
index e0b216b600d..1ed435e69a8 100644
--- a/mod/data/templates.php
+++ b/mod/data/templates.php
@@ -57,6 +57,12 @@ $PAGE->set_url($url);
 require_login($course, false, $cm);
 require_capability('mod/data:managetemplates', $context);
 
+if ($action == 'resetalltemplates') {
+    require_sesskey();
+    $manager->reset_all_templates();
+    redirect($PAGE->url, get_string('templateresetall', 'mod_data'), null, \core\output\notification::NOTIFY_SUCCESS);
+}
+
 $manager->set_template_viewed();
 
 if ($useeditor !== null) {
@@ -86,11 +92,6 @@ if (!$manager->has_fields()) {
 $actionbar = new \mod_data\output\action_bar($instance->id, $url);
 echo $actionbar->get_templates_action_bar();
 
-if ($action == 'resetalltemplates') {
-    $manager->reset_all_templates();
-    $notificationstr = get_string('templateresetall', 'mod_data');
-}
-
 if (($formdata = data_submitted()) && confirm_sesskey()) {
     if (!empty($formdata->defaultform)) {
         // Reset the template to default.