plugins/CoreAdminHome/Emails/AnonymousAccessEnabledEmail.php

<?php

/**
 * Matomo - free/libre analytics platform
 *
 * @link    https://matomo.org
 * @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */

namespace Piwik\Plugins\CoreAdminHome\Emails;

use Piwik\Piwik;
use Piwik\Plugins\CoreAdminHome\Emails\SecurityNotificationEmail;

class AnonymousAccessEnabledEmail extends SecurityNotificationEmail
{
    /**
     * @var string
     */
    private $siteName;

    public function __construct($login, $emailAddress, $siteName)
    {
        // this property is used in a twig template, where it is escaped automatically
        // so we decode it here, to avoid double encoding
        $this->siteName = html_entity_decode($siteName);

        parent::__construct($login, $emailAddress);
    }

    protected function getBody()
    {
        return Piwik::translate('CoreAdminHome_SecurityNotificationAnonymousAccessEnabledBody', [$this->siteName]);
    }
}