Roundup 1.6 allows XSS via the URI because frontends/roundup.cgi and roundup/cgi/wsgi_handler.py mishandle 404 errors.
www.openwall.com/lists/oss-security/2019/04/07/1
bugs.python.org/issue36391
github.com/advisories/GHSA-926q-wxr6-3crq
github.com/python/bugs.python.org/issues/34
lists.debian.org/debian-lts-announce/2019/04/msg00009.html
nvd.nist.gov/vuln/detail/CVE-2019-10904
www.openwall.com/lists/oss-security/2019/04/05/1