CVE-2025-66551 – Nextcloud Tables is missing an ownership check which allows moving columns into tables of other users

CVE ID : CVE-2025-66551

Published : Dec. 5, 2025, 6:15 p.m. | 49 minutes ago

Description : Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.6 and 0.9.3, a malicious user was able to create their own table and then move a column to a victims table. This vulnerability is fixed in 0.8.6 and 0.9.3.

Severity: 6.3 | MEDIUM

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