CVE-2023-6477

Name: CVE-2023-6477
Creator: NVD / NIST
Published: 2024-02-22T00:15:51.533+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.7/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2023-6477 is a medium-severity vulnerability rated 6.7/10 on the CVSS scale. An issue has been discovered in GitLab EE affecting all versions starting from 16.5 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. When a user is assigned a custom role with admin_group_member permission, they may be able to make a group, other members or themselves Owners of that group, which may lead to privilege escalation.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

An issue has been discovered in GitLab EE affecting all versions starting from 16.5 before 16.7.6, all versions starting from 16.8 before 16.8.3, all versions starting from 16.9 before 16.9.1. When a user is assigned a custom role with admin_group_member permission, they may be able to make a group, other members or themselves Owners of that group, which may lead to privilege escalation.

Metrics

CVSS 3.1

6.7/10

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

EPSS Probability

0.53%

40.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-266

Affected Software

Vendor	Product	Versions
Gitlab	Gitlab	>= 16.5.0, < 16.7.6
Gitlab	Gitlab	>= 16.8.0, <= 16.8.3
Gitlab	Gitlab	16.9.0

References

https://gitlab.com/gitlab-org/gitlab/-/issues/433463Permissions Required
https://hackerone.com/reports/2270898Permissions Required
https://gitlab.com/gitlab-org/gitlab/-/issues/433463Permissions Required
https://hackerone.com/reports/2270898Permissions Required

Timeline

Published: Feb 22, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-6477?

How severe is CVE-2023-6477?

CVE-2023-6477 has a CVSS score of 6.7/10 (MEDIUM severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6477?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6477?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST