An issue in Incident Timelines has been discovered in GitLab CE/EE affecting all versions starting from 14.9 before 15.1.6, all versions starting from 15.2 before 15.2.4, all versions starting from 15.3 before 15.3.2.which allowed an authenticated attacker to inject arbitrary content. A victim interacting with this content could lead to arbitrary requests.
https://hackerone.com/reports/1647446
https://gitlab.com/gitlab-org/gitlab/-/issues/368676
https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-2527.json