CVE-2025-66557 | THREATINT

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.

PUBLISHED Reserved 2025-12-04 | Published 2025-12-05 | Updated 2025-12-05 | Assigner GitHub_M

MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Problem types

CWE-284: Improper Access Control

Product status

>= 1.15.0-beta.1, < 1.15.2

affected

< 1.14.6

affected

References

github.com/...sories/security/advisories/GHSA-wwr8-hx9g-rjvv

github.com/nextcloud/deck/pull/7131

github.com/...ommit/f1da8b30a455f02373d44154da04494c949a95ae

hackerone.com/reports/3247499

cve.org (CVE-2025-66557)

nvd.nist.gov (CVE-2025-66557)