Incorrect authorization checks in GitLab CE/EE from all versions starting from 8.13 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2, allows a user to abuse slack/mattermost integrations to execute slash commands as another user.
CVE-2023-5356
HIGHNVD 7.3
7.3
- CVSS v3
- 7.3
- EG Score
- —
- EPSS
- —
- KEV
- Not listed
Published
January 12, 2024
Last Modified
November 21, 2024
References (4)
- cve@gitlabhttps://gitlab.com/gitlab-org/gitlab/-/issues/427154
- cve@gitlabhttps://hackerone.com/reports/2188868
- af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/gitlab-org/gitlab/-/issues/427154
- af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/2188868
Vendor Advisories for CVE-2023-5356(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Frequently asked(4)
What is CVE-2023-5356?
CVE-2023-5356 is a high vulnerability published on January 12, 2024. Incorrect authorization checks in GitLab CE/EE from all versions starting from 8.13 before 16.5.6, all versions starting from 16.6 before 16.6.4, all versions starting from 16.7 before 16.7.2, allows a user to abuse slack/mattermost integrations to execute slash commands as another user.
When was CVE-2023-5356 disclosed?
CVE-2023-5356 was first published in the National Vulnerability Database on January 12, 2024, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2023-5356?
CVE-2023-5356 has a CVSS v3 base score of 7.3 (NVD).
How do I remediate CVE-2023-5356?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-5356, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-5356
Is Your Infrastructure Affected by CVE-2023-5356?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.