Bug 2419466 (CVE-2025-66547) - CVE-2025-66547 nextcloud-server: Nextcloud Server users can modify tags on files that do not belong to them
Summary: CVE-2025-66547 nextcloud-server: Nextcloud Server users can modify tags on fi...
Keywords:
Status: NEW
Alias: CVE-2025-66547
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2420190 2420193 2420195
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-05 17:02 UTC by OSIDB Bzimport
Modified: 2025-12-08 21:27 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-12-05 17:02:41 UTC 
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.
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