---
title: "Django 1.8.18 release notes"
version: 4.1
locale: pl
source: https://docs.djangoproject.com/pl/4.1/releases/1.8.18/
canonical: https://djangodocs.dev/pl/4.1/releases/1.8.18/
---
# Django 1.8.18 release notes

*April 4, 2017*

Django 1.8.18 fixes two security issues in 1.8.17.

## 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 [i18n](/pl/4.1/topics/i18n/))
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
[`serve()`](/pl/4.1/ref/views/#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.