GitLab Community and Enterprise Edition before 10.7.7, 10.8.x before 10.8.6, and 11.x before 11.0.4 allows Directory Traversal with write access and resultant remote code execution via the GitLab projects import component.
https://hackerone.com/reports/378148
https://gitlab.com/gitlab-org/gitlab-ce/issues/49133
https://about.gitlab.com/2018/07/17/critical-security-release-gitlab-11-dot-0-dot-4-released/