Vulnerability identifier: #VU31071

Vulnerability risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-10111

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Gitlab Community Edition
Universal components / Libraries / Software for developers

Vendor: GitLab, Inc

Description

The vulnerability allows a remote authenticated user to read and manipulate data.

An issue was discovered in GitLab Community and Enterprise Edition before 11.7.8, 11.8.x before 11.8.4, and 11.9.x before 11.9.2. It allows persistent XSS in the merge request "resolve conflicts" page.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Gitlab Community Edition: 11.9.0 - 11.9.1

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External links
http://about.gitlab.com/2019/04/01/security-release-gitlab-11-dot-9-dot-4-released/
http://about.gitlab.com/blog/categories/releases/
http://gitlab.com/gitlab-org/gitlab-ce/issues/56927

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.