Vulnerability in GitLab
CVE-2023-3915
An issue has been discovered in GitLab EE affecting all versions starting from 16.1 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. If an external user is given an owner role on any group, that external user may escalate their privileges on the instance by creating a service account in that group. This service account is not classified as external and may be used to access internal projects.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.007 (50.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 50.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001
Affected products
- GitLab — versions 16.1, 16.3.0, 16.2
Weakness classification (CWE)
References
- gitlab.com/gitlab-org/gitlab/-/issues/417664 (issue-tracking, permissions-required, Broken Link)
- hackerone.com/reports/2040834 (Permissions Required, technical-description, permissions-required, exploit)
Frequently asked questions
- What is CVE-2023-3915?
- CVE-2023-3915 is a medium-severity vulnerability in GitLab, classified under Incorrect Execution-Assigned Permissions. CVSS score: 6.5/10. Published 2023-09-01.
- How severe is CVE-2023-3915?
- Medium severity. CVSS v3 base score is 6.5 out of 10.