CVE-2025-66551

Nextcloud Tables is missing an ownership check which allows moving columns into tables of other users

Published Dec 5, 2025 CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:nextcloud:tables:*:*:*:*:*:nextcloud:*:*
Type Values Removed Values Added
First Time appeared Nextcloud
Nextcloud tables
Vendors & Products Nextcloud
Nextcloud tables
Type Values Removed Values Added
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.
Title Nextcloud Tables is missing an ownership check which allows moving columns into tables of other users
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Dec 9, 2025, 8:09 PM
Reserved
Dec 4, 2025, 3:57 PM
Status
Analyzed
Published
Dec 5, 2025, 6:15 PM
Modified
Sep 25, 2026, 11:10 PM