Permission to delete or edit attachments after changing ownership of a page

[mohnbroetchen2]

Attempted Debugging

• [x] I have read the debugging page

Searched GitHub Issues

• [x] I have searched GitHub for the issue.

Describe the Scenario

Hi @ssddanbrown,

first of all, thanks for your great work.

Can you tell whether the following behavior is desired? If the owner of a page changed the new owner can not delete or edit the attachments the former owner attached. The new owner can upload new attachments but can not edit/delete attachments already added. I assumed that the new owner would also receive the ownership for the page attachments.

Steps to Reproduce

1. Create a page and upload an attachment
2. Set a new owner of the page (the new owner should only have permission to edit or delete their own attachments)
3. Login with the new owner and open the page created in step 1
4. Open attachment sidebar
5. Try to delete / edit attachments

Exact BookStack Version

v25.07.3

Log Content

Hosting Environment

PHP8.3, Ubuntu 24.04 installed using official installation script