GHSA-gv98-g628-m9x5

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GHSA-gv98-g628-m9x5

Summary: Django Cross-site Scripting Vulnerability

Details: The `django.util.http.is_safe_url` function in Django before 1.4.18, 1.6.x before 1.6.10, and 1.7.x before 1.7.3 does not properly handle leading whitespaces, which allows remote attackers to conduct cross-site scripting (XSS) attacks via a crafted URL, related to redirect URLs, as demonstrated by a `\njavascript:` URL.

References: https://nvd.nist.gov/vuln/detail/CVE-2015-0220, https://github.com/django/django/commit/4c241f1b710da6419d9dca160e80b23b82db7758, https://github.com/django/django/commit/72e0b033662faa11bb7f516f18a132728aa0ae28, https://github.com/django/django/commit/de67dedc771ad2edec15c1d00c083a1a084e1e89, https://github.com/django/django, https://github.com/django/django/blob/4555a823fd57e261e1b19c778429473256c8ea08/docs/releases/1.4.18.txt#L34-L46, https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2015-5.yaml, https://web.archive.org/web/20150128111656/http://secunia.com/advisories/62285, https://web.archive.org/web/20150523054951/http://www.mandriva.com/en/support/security/advisories/advisory/MDVSA-2015:109/?name=MDVSA-2015:109, https://web.archive.org/web/20150523054953/http://www.mandriva.com/en/support/security/advisories/advisory/MDVSA-2015:036/?name=MDVSA-2015:036, https://web.archive.org/web/20151104201446/http://secunia.com/advisories/62718, https://www.djangoproject.com/weblog/2015/jan/13/security, http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148485.html, http://lists.fedoraproject.org/pipermail/package-announce/2015-January/148608.html, http://lists.opensuse.org/opensuse-updates/2015-04/msg00001.html, http://lists.opensuse.org/opensuse-updates/2015-09/msg00035.html, http://ubuntu.com/usn/usn-2469-1