CVE-2023-39952
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
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Puntuación base: 6.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.81%
- Percentil entre todas las CVEs puntuadas: 56
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-284
Referencias
- https://github.com/nextcloud/groupfolders/issues/1906
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-cq8w-v4fh-4rjq
- https://github.com/nextcloud/server/pull/38890
- https://hackerone.com/reports/1808079
- https://github.com/nextcloud/groupfolders/issues/1906
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-cq8w-v4fh-4rjq
- https://github.com/nextcloud/server/pull/38890
- https://hackerone.com/reports/1808079
JSON original (NVD)
Mostrar
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