An issue was discovered in Django 1.11 before 1.11.21, 2.1 before 2.1.9, and 2.2 before 2.2.2. The clickable Current URL value displayed by the AdminURLFieldWidget displays 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.
lists.opensuse.org/opensuse-security-announce/2019-08/msg00006.html
lists.opensuse.org/opensuse-security-announce/2019-08/msg00025.html
www.openwall.com/lists/oss-security/2019/06/03/2
www.securityfocus.com/bid/108559
docs.djangoproject.com/en/dev/releases/1.11.21/
docs.djangoproject.com/en/dev/releases/2.1.9/
docs.djangoproject.com/en/dev/releases/2.2.2/
docs.djangoproject.com/en/dev/releases/security/
github.com/advisories/GHSA-7rp2-fm2h-wchj
groups.google.com/forum/#!topic/django-announce/GEbHU7YoVz8
lists.debian.org/debian-lts-announce/2019/06/msg00001.html
lists.debian.org/debian-lts-announce/2019/07/msg00001.html
lists.fedoraproject.org/archives/list/[email protected]/message/USYRARSYB7PE3S2ZQO7PZNWMH7RPGL5G/
seclists.org/bugtraq/2019/Jul/10
security.gentoo.org/glsa/202004-17
usn.ubuntu.com/4043-1/
www.debian.org/security/2019/dsa-4476
www.djangoproject.com/weblog/2019/jun/03/security-releases/