Password hashing does not work without T3 environment.

extension/Source/core/typo3/Password.php

@@ -29,6 +29,11 @@ class Password {
         // Use md5 as fallback
         $password = md5($newPassword);
 
+//     $dataHandler = \TYPO3\CMS\Core\Utility\GeneralUtility::makeInstance(\TYPO3\CMS\Core\DataHandling\DataHandler::class);
+//$dataHandler->start([], $cmd);
+//$dataHandler->process_cmdmap();
+
+
         if (\TYPO3\CMS\Saltedpasswords\Utility\SaltedPasswordsUtility::isUsageEnabled('FE')) {
             $objSalt = \TYPO3\CMS\Saltedpasswords\Salt\SaltFactory::getSaltingInstance(NULL);
             if (is_object($objSalt)) {