CVE-2025-66551

MEDIUM

Nextcloud Tables <0.8.6-0.9.3 - Privilege Escalation

Title source: llm
STIX 2.1

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.

References (4)

Core 4

Scores

CVSS v3 6.3
EPSS 0.0002
EPSS Percentile 6.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-639
Status published
Products (1)
nextcloud/tables 0.4.0 - 0.8.6
Published Dec 05, 2025
Tracked Since Feb 18, 2026