Auth. Broken Access Control vulnerability

Hello!

A few days ago, my host started to pester me with a warning about a vulnerability in the plugin. I’m just dropping this here in case you don’t know, because I find the report less than helpful.

https://patchstack.com/database/vulnerability/subscribe-to-category/wordpress-subscribe-to-category-plugin-2-7-1-auth-broken-access-control-vulnerability?_a_id=241

If this turns out to be nothing, feel free to close this thread.

The page I need help with: [log in to see the link]