CVE-2025-66557

5.4 MEDIUM
Published: December 05, 2025 Modified: December 09, 2025
View on NVD

Description

Nextcloud Deck is a kanban style organization tool aimed at personal planning and project organization for teams integrated with Nextcloud. Prior to 1.14.6 and 1.15.2, a bug in the permission logic allowed users with "Can share" permission to modify the permissions of other recipients. This vulnerability is fixed in 1.14.6 and 1.15.2.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/nextcloud/deck/commit/f1da8b30a455f02373d44154da04494c949a95ae
Source: security-advisories@github.com
Patch
https://github.com/nextcloud/deck/pull/7131
Source: security-advisories@github.com
Issue Tracking Patch
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wwr8-hx9g-rjvv
Source: security-advisories@github.com
Patch Vendor Advisory
https://hackerone.com/reports/3247499
Source: security-advisories@github.com
Issue Tracking Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.4 / 10.0
EPSS (Exploit Probability)
0.0%
1th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-284

Affected Vendors

nextcloud

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