Provide references for CVE-2020-15118.
Where can I find more information about CVE-2020-15118?
References are available at: https://github.com/wagtail/wagtail/security/advisories/GHSA-2473-9hgq-j7xw, https://docs.djangoproject.com/en/3.0/ref/models/fields/#django.db.models.Field.help_text, https://docs.wagtail.io/en/stable/reference/contrib/forms/index.html#usage, https://github.com/wagtail/wagtail/commit/d9a41e7f24d08c024acc9a3094940199df94db34, https://github.com/wagtail/wagtail/blob/master/docs/releases/2.9.3.rst.