What’s Vulnerable › Vulnerabilities

CVE-2025-47792: Nextcloud Desktop 3rdparty applications can create share links via socket API

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-16 · updated 2026-06-17
• Weakness: CWE-284

Description

Nextcloud Desktop is the desktop sync client for Nextcloud. In versions of Nextcloud Desktop prior to 3.15, 3rdparty applications already installed on a user machine can create link shares for almost all data via the socket API. These shares can then be easily sent off to an external service. Nextcloud Desktop fixes the issue in version 3.15. No known workarounds are available.

Affected products

• Desktop Client: before 3.15.0 — fixed in 3.15.0

How to fix

Upgrade to a fixed version: Desktop Client 3.15.0. Check the vendor advisory for mitigations.

References

• https://github.com/nextcloud/desktop/pull/7517
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qm2f-959g-7p65
• https://hackerone.com/reports/1995856

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