diff --git a/src/old/application/modules/default/controllers/UserController.php b/src/old/application/modules/default/controllers/UserController.php
index 84d3d4300..04085ee69 100755
--- a/src/old/application/modules/default/controllers/UserController.php
+++ b/src/old/application/modules/default/controllers/UserController.php
@@ -3106,7 +3106,32 @@ class UserController extends TP_Controller_Action
         );
 
         if ($this->_request->isPost()) {
-            if ($form->isValid($formData)) {
+            $externalValidation = true;
+            if ($this->shop->getPluginSettings(
+                module: 'friendlycaptcha',
+                name: 'secret',
+            )) {
+                $externalValidation = false;
+
+                $service_url = 'http://web/apps/api/plugin/system/psc/friendlycaptcha/validate';
+                $ch = curl_init($service_url);
+                curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
+                    'shop_uuid' => $this->shop->uid,
+                    'token' => $this->_request->getParam('frc-captcha-solution'),
+                ]));
+                curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+                curl_setopt($ch, CURLOPT_HTTPHEADER, array(
+                    'Content-Type: application/json',
+                ));
+
+                $curl_response = curl_exec($ch);
+                $decoded = json_decode($curl_response, true);
+                if ($decoded['success'] == true) {
+                    $externalValidation = true;
+                }
+            }
+
+            if (($this->_getParam('externalValidation', false) || $externalValidation) && $form->isValid($formData)) {
                 $contact = new Contact();
                 $contact->self_email = $formData['rech']['self_email'];
                 if (isset($formData['rech']['self_anrede'])) {