CVE-2021-39903 Information

Description

In all versions of GitLab CE/EE since version 13.0 a privileged user through an API call can change the visibility level of a group or a project to a restricted option even after the instance administrator sets that visibility option as restricted in settings.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Reference

https://hackerone.com/reports/1086781 https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39903.json https://gitlab.com/gitlab-org/gitlab/-/issues/300017

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

6.5