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CVE-2025-66547
Published: Dec 5, 2025
Modified: Dec 5, 2025
PUBLISHED
CVSS v3.1
4.3
MEDIUM
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.
| Vendor | Product | Versions |
|---|---|---|
nextcloud | security-advisories | affected < 31.0.1 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
References
https://github.com/nextcloud/server/issues/51247
x_refsource_MISC
https://github.com/nextcloud/server/pull/51288
x_refsource_MISC
https://hackerone.com/reports/3040887
x_refsource_MISC
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