Medium severity · published Dec 5, 2025
CVE-2025-66545
Nextcloud Groupfolders provides admin-configured folders shared by everyone in a group or team
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GF
Group Folders · Nextcloud
before 14.0.11; 15.0.0 before 15.3.12; 16.0.0 before 16.0.15; 17.0.0 before 17.0.14; 18.0.0 before 18.1.8; 19.0.0 before 20.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66545
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66545
Patch
https://github.com/nextcloud/groupfolders/commit/bbe87ebed8da23e9df4db637a76fbc8d36439d58
Issue Tracking
https://github.com/nextcloud/groupfolders/issues/4041
Issue Tracking
https://github.com/nextcloud/groupfolders/pull/4076
Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vrq-fhmf-c49m
More from Group Folders
8.1
CVE-2020-8153
Improper access control in Groupfolders app 4.0.3 allowed to delete hidden directories when when renaming an accessible item to the same name
6.5
CVE-2025-47793
Nextcloud Server is a self hosted personal cloud system, and the Nextcloud Groupfolders app provides admin-configured folders shared by everyone in a group or team