GitLab 9.5.9 through 12.9 is vulnerable to stored XSS in an admin notification feature.

Description

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

References

• https://about.gitlab.com/releases/2020/03/26/security-release-12-dot-9-dot-1-released/