01 Record
CVE-2023-31128
NextCloud Cookbook's pull-checks.yml workflow is vulnerable to OS Command Injection
HighPUBLISHEDCNA: GitHub_M
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
02 Description
NextCloud Cookbook's pull-checks.yml workflow is vulnerable to OS Command Injection
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 3.34% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 88.6% of scored records. A rank, not a probability.
- NVD base score
- 8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-05-26 21:49Z3 YR AGO
- Last updated
- 2025-01-14 19:24Z1 YR AGO
- Reserved
- 2023-04-24
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.1)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
- Weaknesses
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
- Data version
- 5.1
- Document digest
- 7ae678dd0ebf22e660586f71e4654f266439f5112b5c5e8ece827b90b1c06321
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/nextcloud/cookbook/security/advisories/GHSA-c5pc-mf2f-xq8h
- github.comhttps://github.com/nextcloud/cookbook/commit/489bb744
- github.comhttps://github.com/nextcloud/cookbook/commit/a46d98559e2c64292da9ffb06138cccc2e50ae1b
- github.comhttps://github.com/nextcloud/cookbook/blob/a14d6ffc4d45e1447556f68606129dfd6c1505cf/.github/workflows/pull-checks.yml#L67
- securitylab.github.comhttps://securitylab.github.com/research/github-actions-untrusted-input/