# 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.

- **Severity:** Medium 5.0 (`CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:L/A:N`)
- **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:** Yes
- **Published:** 16 May 2025
- **Updated:** 16 May 2025
- **Also known as:** DEBIAN-CVE-2025-47792, GHSA-qm2f-959g-7p65, UBUNTU-CVE-2025-47792

## 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.

Weakness: CWE-862 (Missing Authorization), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2025-47792?

It affects 1 product.


Products: Nextcloud Desktop.

## How do I fix CVE-2025-47792?

Upgrade to a fixed version.

## 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](https://insights.sbomify.com/CVE-2024-46958/): Misconfiguration in n/a (critical 9.1)
- [CVE-2020-8224](https://insights.sbomify.com/CVE-2020-8224/): Code injection in Desktop Client (high 7.8)
- [CVE-2020-8225](https://insights.sbomify.com/CVE-2020-8225/): Information disclosure in Desktop Client (high 7.5)
- [CVE-2021-37617](https://insights.sbomify.com/CVE-2021-37617/): Untrusted Search Path in Nextcloud Desktop Client (high 7.3)
- [CVE-2023-28999](https://insights.sbomify.com/CVE-2023-28999/): Nextcloud: Lack of authenticity of metadata keys allows a malicious server to gain access to E2EE folders (medium 6.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-47792 and fix it if it is affected.

What it is: 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.
Exploitation: There is no known exploitation of CVE-2025-47792 in the wild and no public exploit code.

Affected product: nextcloud security-advisories. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-47792/ (Markdown: https://insights.sbomify.com/CVE-2025-47792/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-47792
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-47792
- OSV: https://osv.dev/vulnerability/CVE-2025-47792

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-47792/
Summaries are generated and may contain mistakes; the official description above is the record.