CVE-2025-47792 Nextcloud Desktop 3rdparty applications can create share links via socket API
Third-party applications can bypass authorization to create share links for user data via the socket API, potentially exposing sensitive information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-47792?
CVE-2025-47792 is a medium-severity missing authorization vulnerability in nextcloud security-advisories, published on 16 May 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2025-47792?
It affects 1 product.
Products include Nextcloud Desktop.
How do I fix CVE-2025-47792?
Upgrade to a fixed version.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-47792 being exploited?
There is no known exploitation of CVE-2025-47792 in the wild and no public exploit code.
Other vulnerabilities in nextcloud security-advisories
- CVE-2024-46958 Misconfiguration in n/a
- CVE-2020-8224 Code injection in Desktop Client
- CVE-2020-8225 Information disclosure in Desktop Client
- CVE-2021-37617 Untrusted Search Path in Nextcloud Desktop Client
- CVE-2023-28999 Nextcloud: Lack of authenticity of metadata keys allows a malicious server to gain access to E2EE folders
Sources
Also known as DEBIAN-CVE-2025-47792, GHSA-qm2f-959g-7p65, UBUNTU-CVE-2025-47792.