Missing permission check on fork relation creation in GitLab CE/EE 11.3 and later through 13.0.1 allows guest users to create a fork relation on restricted public projects via API
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-13270
Reference (s):
- https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13270.json
- https://gitlab.com/gitlab-org/gitlab/-/issues/24648
- https://hackerone.com/reports/419977