Vulnerability in Nextcloud Group Folders
CVE-2025-66545
Nextcloud Groupfolders provides admin-configured folders shared by everyone in a group or team. Prior to 14.0.11, 15.3.12, 16.0.15, 17.0.14, 18.1.8, 19.1.8, and 20.1.2, a user with read-only permission can restore a file from the trash bin. This vulnerability is fixed in 14.0.11, 15.3.12, 16.0.15, 17.0.14, 18.1.8, 19.1.8, and 20.1.2.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (18.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Nextcloud Group Folders
- Nextcloud Security-Advisories — versions < 14.0.11, >= 15.0.0-beta1, < 15.3.12, >= 16.0.0, < 16.0.15
Weakness classification (CWE)
References
- github.com/nextcloud/security-advisories/security/advisories/GHSA-2vrq-fhmf-c49m (Patch, Vendor Advisory)
- github.com/nextcloud/groupfolders/issues/4041 (Issue Tracking)
- github.com/nextcloud/groupfolders/pull/4076 (Patch, Issue Tracking)
- github.com/nextcloud/groupfolders/commit/bbe87ebed8da23e9df4db637a76fbc8d36439d… (Patch)
Frequently asked questions
- What is CVE-2025-66545?
- CVE-2025-66545 is a low-severity vulnerability in Nextcloud Group Folders, classified under CWE-707. CVSS score: 3.5/10. Published 2025-12-05.
- How severe is CVE-2025-66545?
- Low severity. CVSS v3 base score is 3.5 out of 10.