Medium severity5.4NVD Advisory· Published Dec 5, 2025· Updated Jun 17, 2026
CVE-2025-66557
CVE-2025-66557
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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Affected products
3- Range: >= 1.15.0-beta.1, < 1.15.2
Patches
Vulnerability mechanics
References
4- github.com/nextcloud/deck/commit/f1da8b30a455f02373d44154da04494c949a95aenvdPatch
- github.com/nextcloud/deck/pull/7131nvdIssue TrackingPatch
- github.com/nextcloud/security-advisories/security/advisories/GHSA-wwr8-hx9g-rjvvnvdPatchVendor Advisory
- hackerone.com/reports/3247499nvdIssue TrackingVendor Advisory
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