An Academic Group Manager will need to enable Photos in the Course Content Category Settings.

As an Academic Group Manager:
  1. Navigate to Academics.
  2. Select Content > Class Pages > Content Category Settings.
  3. Click the Edit link to the far right of the Text option.
  4. Set the Max # of Images.
  5. Click Save & Exit.
This will then allow photos to be uploaded to Text Content Types on Course Page Bulletin Boards. 

User-added image