Wagtail: Improper restriction handling on Page translation API endpoint

Impact A CMS user with the "submit translations" permission, could use the Admin API's "copy for translation" endpoint to copy an existing page that they do not have edit access to, allowing them to view its contents. Patches Patched versions have been released as Wagtail 7.0.9, 7.3.4, 7.4.3 and...