Container security is an entire subfield of infosec. For example: https://github.com/advisories/GHSA-w235-x559-36mg
replyPeople on both sides are just getting started finding all the ways to abuse or protect you from security assumptions with these tools. RSS is the right tool for this problem and I would be surprised if their CMS doesn't produce a feed on its own.
I don't use a container. I use a VM.
replyI'm not totally naive. I had the VM fairly hardened originally, but it proved to be inconvenient. I relaxed it so that processes on the VM can see other devices on the network.
There's definitely some risk to that.