For now I only added this feature to Posts, but seing your comment in #1168 I think this can be added to Pages too (I didn't checked the source yet, but I can have a look if you want).

I tried to mitigate the security concerns by adding the following:

```ruby
FORBIDDEN_CLASSIFICATIONS = %w(posts pages html_pages categories tags).freeze
# ...
self.classifications |= (config['classifications'] || []).reject { |c| c !~ /\A[a-z][a-zA-Z_-]*\z/ || FORBIDDEN_CLASSIFICATIONS.include?(c) }
```

If I'm totally missing the point about what kind of security concern you see here don't hesitate to give a more specific example (it's been a long time and I might not be up to date :grin:)