An Improper Input Validation issue was discovered in GitLab Community and Enterprise Edition before 11.5.8, 11.6.x before 11.6.6, and 11.7.x before 11.7.1. It was possible to use the profile name to inject a potentially malicious link into notification emails.
https://gitlab.com/gitlab-org/gitlab-ce/issues/22076
https://about.gitlab.com/2019/01/31/security-release-gitlab-11-dot-7-dot-3-released/