Fixes #4127: `CaptchaValidator` clientside error message wasn't formed properly

framework/CHANGELOG.md

@@ -62,6 +62,7 @@ Yii Framework 2 Change Log
 - Bug #3989: Fixed yii\log\FileTarget::$rotateByCopy to avoid any rename (cebe)
 - Bug #3996: Traversing `Yii::$app->session` may cause a PHP error (qiangxue)
 - Bug #4020: OCI column detection did not work so gii and other things failed (Sanya1991)
+- Bug #4127: `CaptchaValidator` clientside error message wasn't formed properly (samdark)
 - Bug: Fixed inconsistent return of `\yii\console\Application::runAction()` (samdark)
 - Bug: URL encoding for the route parameter added to `\yii\web\UrlManager` (klimov-paul)
 - Bug: Fixed the bug that requesting protected or private action methods would cause 500 error instead of 404 (qiangxue)

framework/captcha/CaptchaValidator.php

@@ -92,9 +92,9 @@ class CaptchaValidator extends Validator
             'hash' => $hash,
             'hashKey' => 'yiiCaptcha/' . $this->captchaAction,
             'caseSensitive' => $this->caseSensitive,
-            'message' => strtr($this->message, [
+            'message' => Yii::$app->getI18n()->format($this->message, [
                 'attribute' => $object->getAttributeLabel($attribute),
-            ]),
+            ], Yii::$app->language),
         ];
         if ($this->skipOnEmpty) {
             $options['skipOnEmpty'] = 1;