CVE-2025-66547

Published

Last updated

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-66547

Severity

4.3

Medium

CVSS V3

Summary

Nextcloud Server users can modify tags on files that do not belong to them

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.

References

https://images.chainguard.dev/security/CGA-mfjf-2gg3-6j2r
https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66547.json
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hq6c-r898-fgf2
https://github.com/nextcloud/server/commit/b44f1568f2dc97c746281d99e2342ad679e3d8a9
https://github.com/nextcloud/server/issues/51247
https://github.com/nextcloud/server/pull/51288
https://hackerone.com/reports/3040887
https://nvd.nist.gov/vuln/detail/CVE-2025-66547

Affected packages

Advisories are based on vulnerability information provided by Grype from Anchore. Learn how Chainguard creates security advisories.

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CVE-2025-66547

Severity

Summary

Description

References

Affected packages

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