CVE-2025-66547
published 2025-12-05CVE-2025-66547: 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…
PriorityP423medium4.3CVSS 3.1
AVNACLPRLUINSUCNILAN
EPSS
0.24%
14.8th percentile
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.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| nextcloud | nextcloud_server | >= 31.0.0 < 31.0.1 | 31.0.1 |
| nextcloud | security-advisories | < 31.0.1 | 31.0.1 |
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No advisories linked to this vulnerability.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hq6c-r898-fgf2https://github.com/nextcloud/server/commit/b44f1568f2dc97c746281d99e2342ad679e3d8a9https://github.com/nextcloud/server/issues/51247https://github.com/nextcloud/server/pull/51288https://hackerone.com/reports/3040887
2025-12-05
Published