A cross-site scripting issue has been discovered in GitLab CE/EE affecting all versions prior to 15.3.5, 15.4 prior to 15.4.4, and 15.5 prior to 15.5.2. It was possible to exploit a vulnerability in setting the labels colour feature which could lead to a stored XSS that allowed attackers to perform arbitrary actions on behalf of victims at client side.
https://hackerone.com/reports/1693150
https://gitlab.com/gitlab-org/gitlab/-/issues/374976
https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-3265.json