VULNERABILITY INTELLIGENCE

CVE-2025-66547

CVSS score4.3 MEDIUM

EPSS probability0.28%

CISA KEVNot currently listed

Published2025-12-05

Last modified2026-10-18

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

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.

Weakness classification

security-advisories@github.com: CWE-639

Primary references

security-advisories@github.com — Patch, Vendor Advisory
security-advisories@github.com — Patch
security-advisories@github.com — Issue Tracking
security-advisories@github.com — Issue Tracking
security-advisories@github.com — Permissions Required, Vendor Advisory