Medium severity · published May 16, 2025
CVE-2025-47794
Nextcloud Server vulnerable to insecure temporary file creation, race with write access and permission
4.3
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SE
security-advisories · nextcloud
>= 26.0.0, < 26.0.13.13; >= 27.0.0, < 27.1.11.13; >= 28.0.0, < 28.0.14.4; >= 29.0.0, < 29.0.13; >= 30.0.0, < 30.0.7; >= 31.0.0, < 31.0.1 · source: vendor
NS
Nextcloud Server · Nextcloud
26.0.0 before 26.0.13.13; 27.0.0 before 27.1.11.13; 28.0.0 before 28.0.14.4; 29.0.0 before 29.0.13; 29.0.0 before 29.0.13; 30.0.0 before 30.0.7; +3 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-47794
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-47794
Vendor Advisory
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-q568-2933-gcjq
Issue Tracking
https://github.com/nextcloud/server/pull/51194
Permissions Required
https://hackerone.com/reports/1960647
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