A XSS vulnerability exists in Gitlab CE/EE from 12.4 before 13.4.7, 13.5 before 13.5.5, and 13.6 before 13.6.2 that allows an attacker to perform cross-site scripting to other users via importing a malicious project
https://hackerone.com/reports/832117
https://gitlab.com/gitlab-org/gitlab/-/issues/212630
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26407.json