Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Deck | >= 1.14.0, < 1.14.6 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/deck/commit/f1da8b30a455f02373d44154da04494c949a95aPatch
- https://github.com/nextcloud/deck/pull/7131Issue TrackingPatch
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-wwr8-hPatchVendor Advisory
- https://hackerone.com/reports/3247499Issue TrackingVendor Advisory
FAQ
What is CVE-2025-66557?
CVE-2025-66557 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 al...
How severe is CVE-2025-66557?
CVE-2025-66557 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-66557?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Deck.