A vulnerability was discovered in GitLab versions before 13.1.10, 13.2.8 and 13.3.4. An unauthorized project maintainer could edit the subgroup badges due to the lack of authorization control.
https://hackerone.com/reports/751264
https://gitlab.com/gitlab-org/gitlab/-/issues/118536
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13313.json