Vulnerability Description
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.4, 25.0.8, 26.0.3, and 27.0.1, a user can access files inside a subfolder of a groupfolder accessible to them, even if advanced permissions would block access to the subfolder. Nextcloud Server versions 25.0.8, 26.0.3, and 27.0.1 and Nextcloud Enterprise Server versions 22.2.10.13, 23.0.12.8, 24.0.12.4, 25.0.8, 26.0.3, and 27.0.1 contain a patch for this issue. No known workarounds are available.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud Server | >= 22.0.0, < 22.2.10.13 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/groupfolders/issues/1906Issue TrackingThird Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-cq8w-vPatchVendor Advisory
- https://github.com/nextcloud/server/pull/38890Patch
- https://hackerone.com/reports/1808079Permissions Required
- https://github.com/nextcloud/groupfolders/issues/1906Issue TrackingThird Party Advisory
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-cq8w-vPatchVendor Advisory
- https://github.com/nextcloud/server/pull/38890Patch
- https://hackerone.com/reports/1808079Permissions Required
FAQ
What is CVE-2023-39952?
CVE-2023-39952 is a vulnerability with a CVSS score of 6.5 (MEDIUM). Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.4, 25.0.8, 26.0.3, and 27.0.1, a us...
How severe is CVE-2023-39952?
CVE-2023-39952 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-39952?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud Server.