# Documentation Django 5.2.8

# Notes de publication de Django 4.0.2

February 1, 2022

Django 4.0.2 fixes two security issues with severity « medium » and several bugs in 4.0.1. Also, the latest string translations from Transifex are incorporated, with a special mention for Bulgarian (fully translated).

## CVE-2022-22818: Possible XSS via `{% debug %}` template tag

The `{% debug %}` template tag didn’t properly encode the current context, posing an XSS attack vector.

In order to avoid this vulnerability, `{% debug %}` no longer outputs information when the `DEBUG` setting is `False`, and it ensures all context variables are correctly escaped when the `DEBUG` setting is `True`.

## CVE-2022-23833: Denial-of-service possibility in file uploads

Passing certain inputs to multipart forms could result in an infinite loop when parsing files.

## Correction de bogues

- Correction d’un bogue dans Django 4.0 où `TestCase.captureOnCommitCallbacks()` pouvait exécuter des fonctions de rappel plusieurs fois (#33410).

- Correction d’une régression dans Django 4.0 où le contenu potentiellement en HTML de `help_text` était échappé dans les formulaires générés automatiquement.

- Fixed a regression in Django 4.0 that caused displaying an incorrect name for class-based views on the technical 404 debug page (#33425).

- Fixed a regression in Django 4.0 that caused an incorrect `repr` of `ResolverMatch` for class-based views (#33426).

- Fixed a regression in Django 4.0 that caused a crash of `makemigrations` on models without `Meta.order_with_respect_to` but with a field named `_order` (#33449).

- Fixed a regression in Django 4.0 that caused incorrect `ModelAdmin.radio_fields` layout in the admin (#33407).

- Fixed a duplicate operation regression in Django 4.0 that caused a migration crash when altering a primary key type for a concrete parent model referenced by a foreign key (#33462).

- Fixed a bug in Django 4.0 that caused a crash of `QuerySet.aggregate()` after `annotate()` on an aggregate function with a default (#33468).

- Fixed a regression in Django 4.0 that caused a crash of `makemigrations` when renaming a field of a renamed model (#33480).