Related Vulnerabilities: CVE-2018-18643  

A security issue has been found in gitlab versions prior to 11.4.3, where the fragment identifier (hash) of several pages contained a lack of input validation and output encoding issue which resulted in a persistent XSS.

Severity Medium

Remote Yes

Type Cross-site scripting

Description

A security issue has been found in gitlab versions prior to 11.4.3, where the fragment identifier (hash) of several pages contained a lack of input validation and output encoding issue which resulted in a persistent XSS.

AVG-794 gitlab 11.4.0-1 11.4.3-1 Critical Fixed

31 Oct 2018 ASA-201810-16 AVG-794 gitlab Critical multiple issues

https://about.gitlab.com/2018/10/29/security-release-gitlab-11-dot-4-dot-3-released/
https://gitlab.com/gitlab-org/gitlab-ce/commit/5342df04045e1c8a98fdb9fe8203a816bf240ac8