CVE-2019-19118

Django 2.1 before 2.1.15 and 2.2 before 2.2.8 allows unintended model
editing. A Django model admin displaying inline related models, where the
user has view-only permissions to a parent model but edit permissions to
the inline model, would be presented with an editing UI, allowing POST
requests, for updating the inline model. Directly editing the view-only
parent model was not possible, but the parent model’s save() method was
called, triggering potential side effects, and causing pre and post-save
signal handlers to be invoked. (To resolve this, the Django admin is
adjusted to require edit permissions on the parent model in order for
inline models to be editable.)

Notes