VULNERABILITY INTELLIGENCE

CVE-2025-66510

CVSS score4.5 MEDIUM

EPSS probability0.36%

CISA KEVNot currently listed

Published2025-12-05

Last modified2026-10-18

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

Description

Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server prior to 31.0.10 and 32.0.1 and Nextcloud Enterprise Server prior to 28.0.14.11, 29.0.16.8, 30.0.17.3, and 31.0.10, contacts search allowed to retrieve personal data of other users (emails, names, identifiers) without proper access control. This allows an authenticated user to retrieve information about accounts that are not related or added as contacts.

Weakness classification

security-advisories@github.com: CWE-359

Primary references

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