CVE-2025-66557: Nextcloud Deck app allowed user with "Can share" permission to modify permissions of other non-owners
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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2025-66557?
The severity of CVE-2025-66557 is considered moderate due to the improper permission logic that allows unauthorized permission modification.
How do I fix CVE-2025-66557?
To fix CVE-2025-66557, upgrade Nextcloud Deck to version 1.14.6 or 1.15.2 or later.
What impact does CVE-2025-66557 have on user permissions?
CVE-2025-66557 allows users with 'Can share' permission to modify the permissions of other recipients, potentially leading to unauthorized access.
Which versions of Nextcloud Deck are affected by CVE-2025-66557?
Versions prior to 1.14.6 and 1.15.2 of Nextcloud Deck are affected by CVE-2025-66557.
Is CVE-2025-66557 a remote exploit?
CVE-2025-66557 is not classified as a remote exploit, as it depends on user permissions within the Nextcloud Deck application.