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Django allows unintended model editing

moderate severity CVE-2019-19118 published Dec 4, 2019 • updated Dec 10, 2019
Packages Affected versions Patched versions
django (pip) >= 2.1.0, < 2.1.15 2.1.15
>= 2.2.0, < 2.2.8 2.2.8

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.)

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