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==========================
Django 2.2.2 release notes
==========================
*June 3, 2019*
Django 2.2.2 fixes security issues and several bugs in 2.2.1.
CVE-2019-12308: AdminURLFieldWidget XSS
---------------------------------------
The clickable "Current URL" link generated by ``AdminURLFieldWidget`` displayed
the provided value without validating it as a safe URL. Thus, an unvalidated
value stored in the database, or a value provided as a URL query parameter
payload, could result in an clickable JavaScript link.
``AdminURLFieldWidget`` now validates the provided value using
:class:`~django.core.validators.URLValidator` before displaying the clickable
link. You may customize the validator by passing a ``validator_class`` kwarg to
``AdminURLFieldWidget.__init__()``, e.g. when using
:attr:`~django.contrib.admin.ModelAdmin.formfield_overrides`.
Patched bundled jQuery for CVE-2019-11358: Prototype pollution
--------------------------------------------------------------
jQuery before 3.4.0, mishandles ``jQuery.extend(true, {}, ...)`` because of
``Object.prototype`` pollution. If an unsanitized source object contained an
enumerable ``__proto__`` property, it could extend the native
``Object.prototype``.
The bundled version of jQuery used by the Django admin has been patched to
allow for the ``select2`` library's use of ``jQuery.extend()``.
Bugfixes
========
* Fixed a regression in Django 2.2 that stopped Show/Hide toggles working on
dynamically added admin inlines (:ticket:`30459`).
* Fixed a regression in Django 2.2 where deprecation message crashes if
``Meta.ordering`` contains an expression (:ticket:`30463`).
* Fixed a regression in Django 2.2.1 where
:class:`~django.contrib.postgres.search.SearchVector` generates SQL with a
redundant ``Coalesce`` call (:ticket:`30488`).
* Fixed a regression in Django 2.2 where auto-reloader doesn't detect changes
in ``manage.py`` file when using ``StatReloader`` (:ticket:`30479`).
* Fixed crash of :class:`~django.contrib.postgres.aggregates.ArrayAgg` and
:class:`~django.contrib.postgres.aggregates.StringAgg` with ``ordering``
argument when used in a ``Subquery`` (:ticket:`30315`).
* Fixed a regression in Django 2.2 that caused a crash of auto-reloader when
an exception with custom signature is raised (:ticket:`30516`).
* Fixed a regression in Django 2.2.1 where auto-reloader unnecessarily reloads
translation files multiple times when using ``StatReloader``
(:ticket:`30523`).
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