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===========================
Django 1.9.13 release notes
===========================
*April 4, 2017*
Django 1.9.13 fixes two security issues and a bug in 1.9.12. This is the final
release of the 1.9.x series.
CVE-2017-7233: Open redirect and possible XSS attack via user-supplied numeric redirect URLs
============================================================================================
Django relies on user input in some cases (e.g.
``django.contrib.auth.views.login()`` and :doc:`i18n </topics/i18n/index>`)
to redirect the user to an "on success" URL. The security check for these
redirects (namely ``django.utils.http.is_safe_url()``) considered some numeric
URLs (e.g. ``http:999999999``) "safe" when they shouldn't be.
Also, if a developer relies on ``is_safe_url()`` to provide safe redirect
targets and puts such a URL into a link, they could suffer from an XSS attack.
CVE-2017-7234: Open redirect vulnerability in ``django.views.static.serve()``
=============================================================================
A maliciously crafted URL to a Django site using the
:func:`~django.views.static.serve` view could redirect to any other domain. The
view no longer does any redirects as they don't provide any known, useful
functionality.
Note, however, that this view has always carried a warning that it is not
hardened for production use and should be used only as a development aid.
Bugfixes
========
* Fixed a regression in the ``timesince`` and ``timeuntil`` filters that caused
incorrect results for dates in a leap year (:ticket:`27637`).
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