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CVE-2025-66557
December 05, 2025
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 Packages
https://github.com/nextcloud/deck.git (SCM_GIT):
Affected version(s) >=v0.1.0 <v1.14.6
Fix Suggestion:
Update to version v1.14.6
https://github.com/nextcloud/deck.git (SCM_GIT):
Affected version(s) >=v1.15.0 <v1.15.2
Fix Suggestion:
Update to version v1.15.2
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Access Control
EPSS
Base Score:
0.01