OAuth flow missing verification checks CE/EE 12.3 and later through 13.0.1
allows unverified user to use OAuth authorization code flow
gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13272.json
gitlab.com/gitlab-org/gitlab/-/issues/37038
hackerone.com/reports/743556
launchpad.net/bugs/cve/CVE-2020-13272
nvd.nist.gov/vuln/detail/CVE-2020-13272
security-tracker.debian.org/tracker/CVE-2020-13272
www.cve.org/CVERecord?id=CVE-2020-13272