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.

Missing sanitization of data in Pipeline error messages in GitLab CE/EE affecting all versions starting from 1.0.2 before 14.8.6, all versions from 14.9.0 before 14.9.4, and all versions from 14.10.0 before 14.10.1 allows for rendering of attacker controlled HTML tags and CSS styling

Improper access control in GitLab CE/EE versions 10.7 prior to 14.7.7, 14.8 prior to 14.8.5, and 14.9 prior to 14.9.2 allows a malicious actor to obtain details of the latest commit in a private project via Merge Requests under certain circumstances