Django 4.0.2 release notes

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.

漏洞修复

• Fixed a bug in Django 4.0 where TestCase.captureOnCommitCallbacks() could execute callbacks multiple times (#33410).
• Fixed a regression in Django 4.0 where help_text was HTML-escaped in automatically-generated forms (#33419).
• 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).