CVE-2023-5356 json
Incorrect Authorization in GitLab
published 2y ago modified 2mo ago also BIT-gitlab-2023-5356 , EUVD-2023-57672
- cvss
- 7.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 58%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- bitnami gitlab 16.5.6, 16.6.4, 16.7.2
- GitLab GitLab 16.5.6, 16.6.4, 16.7.2
Is CVE-2023-5356 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2y ago
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-14).
Exploits and checks
- hackerone.com https://hackerone.com/reports/2188868 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| OSV | 3.1 | 7.3 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | gitlab | >=8.13.0, <16.5.6 >=16.6.0, <16.6.4 >=16.7.0, <16.7.2 |
16.5.6 16.6.4 16.7.2 |
Affected products
- GitLab GitLab
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
- Technology feeds
References
-
hackerone.com
/reports/2188868
technical-description, exploit, permissions-required, web
-
gitlab.com
/gitlab-org/gitlab/-/issues/427154
issue-tracking, permissions-required, broken-link, web
-
nvd.nist.gov
/vuln/detail/CVE-2023-5356
web
Sources
- CVE List CVE-2023-5356
- NVD CVE-2023-5356
- OSV BIT-gitlab-2023-5356
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Enhance with deb and rpm package type records.