CVE-2025-66553

Nextcloud Tables app allowed users to view columns metadata information of any table

MEDIUM
4.3
CVSS Score
Published: December 5, 2025 at 05:18 PM UTC
Updated: October 15, 2026 at 09:10 PM UTC
2 products affected across 1 vendorTablessecurity-advisories

Using security-advisories by nextcloud?

Get instant alerts when new vulnerabilities affect security-advisories - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.7 and 0.9.4, authenticated users were able to view meta data of columns in other tables of the Tables app by modifying the numeric ID in a request. This vulnerability is fixed in 0.8.7 and 0.9.4.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Tables· Nextcloudnextcloud-app
95%
0.8.0 ≤ v < 0.8.70.9.0 ≤ v < 0.9.4

References (4)

x_refsource_MISCIssue Tracking
Source: cverecord
https://github.com/nextcloud/tables/pull/1891
x_refsource_MISCIssue TrackingVendor Advisory
Source: cverecord
https://hackerone.com/reports/3138721

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-639

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card