CVE-2025-66510

MediumCVSS 4.9/10Last modified Oct 18, 2026

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.

Metrics

CVSS 3.1 4.9/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-359

Affected software

No affected versions have been published.

Timeline

Published: Dec 5, 2025
Last modified: Oct 18, 2026
NVD status: Analyzed

Related CVEs from 2025

CVE-2025-665116.5Nextcloud Calendar is a calendar app for Nextcloud. Prior to 6.0.3, the Calendar app generates participant tokens for meeting proposals usin CVE-2025-665126.1Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Server Enterprise prior to 31.0.12 and 32.0.3, a missing sa CVE-2025-665135.3Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.9, 0.9.6, and 1.0.1, the information which table CVE-2025-665145.4Nextcloud Mail is the mail app for Nextcloud, a self-hosted productivity platform. Prior to 5.5.3, a stored HTML injection in the Mail app's CVE-2025-665152.7The Nextcloud Approval app allows approval or disapproval of files in the sidebar. Prior to 1.3.1 and 2.5.0, an authenticated user listed as CVE-2025-665169.8Critical XXE in Apache Tika tika-core (1.13-3.2.1), tika-pdf-module (2.0.0-3.2.1) and tika-parsers (1.13-1.28.5) modules on all platforms al CVE-2025-665188.8Any client who can access to Apache Kyuubi Server via Kyuubi frontend protocols can bypass server-side config kyuubi.session.local.dir.allow CVE-2025-665195.4A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Layer Import functionality. A crafted payload can CVE-2025-66523.3PDF-XChange Editor PRC File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to d CVE-2025-665205.4A stored cross-site scripting (XSS) vulnerability exists in the Portfolio feature of the Foxit PDF Editor cloud (pdfonline.foxit.com). User-CVE-2025-665215.4A stored cross-site scripting (XSS) vulnerability exists in pdfonline.foxit.com within the Trusted Certificates feature. A crafted payload c CVE-2025-665225.4A stored cross-site scripting (XSS) vulnerability exists in the Digital IDs functionality of the Foxit PDF Editor Cloud (pdfonline.foxit.com