We are seeing a notice in CKEditor (when editing a product in the admin) that it is not secure:

This CKEditor 4.14.0 version is not secure. Consider upgrading to the latest one, 4.24.0-lts.

I see in the readme that upgrades are CDN-driven via the /admin/includes/ckeditor.php

Does anyone know the correct/current script source url?

We've got:
https://cdn.ckeditor.com/4.14.0/stan...ll/ckeditor.js
and I've tried various variations of 4.24.0-lts, but none are working.

Or is there a way to upgrade to verison5, or another HTML editor?