Vulnerability in Nextcloud Server
CVE-2025-47794
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server prior to 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1, an attacker on a multi-user system may read temporary files from Nextcloud running with a different user account, or run a symlink attack. Nextcloud Server versions 29.0.13, 30.0.7, and 31.0.1 and Nextcloud Enterprise Server 26.0.13.13, 27.1.11.13, 28.0.14.4, 29.0.13, 30.0.7, and 31.0.1 fix the issue. No known workarounds are available.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 2.6 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (38.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Nextcloud Server
- Nextcloud Security-Advisories — versions >= 26.0.0, < 26.0.13.13, >= 27.0.0, < 27.1.11.13, >= 28.0.0, < 28.0.14.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-q568-2933-gcjq (Vendor Advisory)
- github.com/nextcloud/server/pull/51194 (Issue Tracking)
- hackerone.com/reports/1960647 (Permissions Required)
Frequently asked questions
- What is CVE-2025-47794?
- CVE-2025-47794 is a low-severity vulnerability in Nextcloud Server, classified under Improper Access Control. CVSS score: 2.6/10. Published 2025-05-16.
- How severe is CVE-2025-47794?
- Low severity. CVSS v3 base score is 2.6 out of 10.
- Is CVE-2025-47794 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.