Wagtail: Pages translations can be created without page permissions when using simple_translation

Impact A low-level user with the "Can submit translation" permission can create translations for any page, including those they do not have permissions for. Patches Patched versions have been released as Wagtail 7.0.8, 7.3.3, 7.4.2. Workarounds N/A Acknowledgements Many thanks to @devansh3008 and...