CVE-2025-66551

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.

CVSS v3 6.3 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w787-vwqp-8wr7	Vendor Advisory
https://github.com/nextcloud/tables/commit/39f24a62fb41fd7a8bda65325f8bbafdc91c731c	Patch
https://github.com/nextcloud/tables/pull/1810	Issue Tracking Patch
https://hackerone.com/reports/3137895	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:nextcloud:tables::::::nextcloud::*
	cpe:2.3:a:nextcloud:tables::::::nextcloud::*

History

09 Dec 2025, 17:07

Type	Values Removed	Values Added
References	~~() https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w787-vwqp-8wr7 -~~	() https://github.com/nextcloud/security-advisories/security/advisories/GHSA-w787-vwqp-8wr7 - Vendor Advisory
References	~~() https://github.com/nextcloud/tables/commit/39f24a62fb41fd7a8bda65325f8bbafdc91c731c -~~	() https://github.com/nextcloud/tables/commit/39f24a62fb41fd7a8bda65325f8bbafdc91c731c - Patch
References	~~() https://github.com/nextcloud/tables/pull/1810 -~~	() https://github.com/nextcloud/tables/pull/1810 - Issue Tracking, Patch
References	~~() https://hackerone.com/reports/3137895 -~~	() https://hackerone.com/reports/3137895 - Issue Tracking, Vendor Advisory
CPE		cpe:2.3:a:nextcloud:tables::::::nextcloud::*
First Time		Nextcloud Nextcloud tables

05 Dec 2025, 18:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-12-05 18:15

Updated : 2025-12-09 17:07

NVD link : CVE-2025-66551

Mitre link : CVE-2025-66551

CVE.ORG link : CVE-2025-66551

JSON object : View

Products Affected

nextcloud

tables

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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