CVE-2025-66557

medium

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.

References

https://hackerone.com/reports/3247499

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wwr8-hx9g-rjvv

https://github.com/nextcloud/deck/pull/7131

https://github.com/nextcloud/deck/commit/f1da8b30a455f02373d44154da04494c949a95ae

Details

Source: Mitre, NVD

Published: 2025-12-05

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 5.4

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

Severity: Medium