CVE-2025-66547

MediumCVSS 4.3/10Last modified Oct 18, 2026

Description

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-639

Affected software

No affected versions have been published.

Timeline

Published
Dec 5, 2025
Last modified
Oct 18, 2026
NVD status
Analyzed

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CVE-2025-66547: Medium severity, CVSS 4.3 | Vulnix