Gitlab is a Warehouse application developed by Ruby On Rails, a self-hosted, Git (version control system) project. The program can be used to check the contents of the project, submit history, bug list, etc. A security vulnerability exists in GitLab where user account password reset emails could be sent to unverified email addresses. This rule supports to defend the A6: Vulnerable and Outdated Components of OWASP Top 10 - 2021. Other reference:None