Remote Yes

Type Arbitrary code execution

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 13.2 allowing unauthorized authenticated users to execute arbitrary code on the server.

AVG-1710 gitlab 13.9.3-1 13.9.4-1 Critical Fixed

https://about.gitlab.com/releases/2021/03/17/security-release-gitlab-13-9-4-released/#remote-code-execution-via-unsafe-user-controlled-markdown-rendering-options
https://hackerone.com/reports/1125425
https://gitlab.com/gitlab-org/gitlab/-/issues/324452
https://gitlab.com/gitlab-org/gitlab/-/commit/179329b5c3c118924fb242dc449d06b4ed6ccb66