GitLab 12.5 through 12.8.1 allows HTML Injection. A particular error header was potentially susceptible to injection or potentially other vulnerabilities via unescaped input.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10075
Reference (s):
- https://about.gitlab.com/releases/2020/03/04/gitlab-12-dot-8-dot-2-released/index.html
- https://about.gitlab.com/releases/2020/03/04/gitlab-12-dot-8-dot-2-released/