CVE-2025-66545

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account, but needs a user to act. Limited direct impact.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-12-05 18:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-10-15 21:10 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.3% in the next 30 days (EPSS).
• Severity: 3.5 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2025-12-05 18:15 UTC

Last modified

2026-10-15 21:10 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-707

Record status

Analyzed

Affected

• Nextcloud Group Folders < 14.0.11
• Nextcloud Group Folders < 15.3.12
• Nextcloud Group Folders < 16.0.15
• Nextcloud Group Folders < 17.0.14
• Nextcloud Group Folders < 18.1.8
• Nextcloud Group Folders < 20.1.2

Attack profile CVSS 3.1 · 3.5

Attack vector

Network

Complexity

Low

Privileges needed

Low

User interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2025-66545.md and follow it. Check whether this project is affected by CVE-2025-66545. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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