CVE-2025-66552
Last modified
CVE-2025-66552 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1, incorrect path handling with groupfolders caused the admin_audit app to not properly log all actions on files and folders inside groupfolders. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
Description
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1, incorrect path handling with groupfolders caused the admin_audit app to not properly log all actions on files and folders inside groupfolders. This vulnerability is fixed in Nextcloud Server and Enterprise Server prior to 30.0.9 and 31.0.1.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud Server | >= 30.0.0, < 30.0.9 |
| Nextcloud | Nextcloud Server | >= 31.0.0, < 31.0.1 |
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-ww9m-f8j4-jj9xPatch, Vendor Advisory
- https://github.com/nextcloud/server/pull/50992Issue Tracking
- https://hackerone.com/reports/2890071Issue Tracking, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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