Vertrauensstufen-Berechtigungen Referenz

[ondrej]

Does the Embedded media post allowed groups site setting help?

Or use this theme component

Restrict uploads

This is a very small theme component that will remove the upload button from the composer toolbar and disable drag-and-drop uploading for users that are under a specified trust level. Illustration [unrestricted] [restricted] Settings [setting] Repository github.com/tshenry/discourse-restrict-uploads New to Discourse Themes? Beginner’s guide to using Discourse Themes Install this theme component