VULNERABILITY INTELLIGENCE

CVE-2025-66551

CVSS score6.3 MEDIUM

EPSS probability0.25%

CISA KEVNot currently listed

Published2025-12-05

Last modified2026-09-25

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L

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.

Weakness classification

CWE-639: Authorization Bypass Through User-Controlled Key

Primary references

security-advisories@github.com — Vendor Advisory
security-advisories@github.com — Patch
security-advisories@github.com — Issue Tracking, Patch
security-advisories@github.com — Issue Tracking, Vendor Advisory