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Case File

CVE-2025-66510

MEDIUM · CVSS 4.5 EPSS 0.35% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-12-05 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.5. Public exploit code or proof-of-concept references have been detected in its references. Exploitation may require the attacker to be authenticated.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2025-66510
Severity
MEDIUM
CVSS
4.5
EPSS
0.35%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)