CVE-2025-66545

Name: CVE-2025-66545
Creator: NVD / NIST
Published: 2025-12-05T18:15:57.803+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2025-66545 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS Probability

0.23%

13.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-707

Affected Software

Vendor	Product	Versions
Nextcloud	Group Folders	< 14.0.11
Nextcloud	Group Folders	>= 15.0.0, < 15.3.12
Nextcloud	Group Folders	>= 16.0.0, < 16.0.15
Nextcloud	Group Folders	>= 17.0.0, < 17.0.14
Nextcloud	Group Folders	>= 18.0.0, < 18.1.8
Nextcloud	Group Folders	>= 19.0.0, < 20.1.2

References

https://github.com/nextcloud/groupfolders/commit/bbe87ebed8da23e9df4db637a76fbc8d36439d58Patch
https://github.com/nextcloud/groupfolders/issues/4041Issue Tracking
https://github.com/nextcloud/groupfolders/pull/4076Issue Tracking, Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2vrq-fhmf-c49mPatch, Vendor Advisory

Timeline

Published: Dec 5, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-66545?

How severe is CVE-2025-66545?

CVE-2025-66545 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2025-66545?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-66545?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST