CVE-2025-47792: desktop Access Control Flaw — Fix

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.

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CVSS v3.1 Score

5.0

MEDIUM

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

Weakness Type (CWE)

CWE-284 CWE-284

CWE-862 Missing Authorization

Affected Products

Vendor	Product	Versions
nextcloud	desktop	< 3.15.0

References

Advisories & Patches

https://github.com/nextcloud/desktop/pull/7517

Other References

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

Frequently Asked Questions

What is CVE-2025-47792? +

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. It has a CVSS v3.1 base score of 5.0 (MEDIUM).

How severe is CVE-2025-47792? +

CVE-2025-47792 has a CVSS v3.1 score of 5.0 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-47792? +

CVE-2025-47792 affects products from nextcloud, specifically: desktop. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-47792? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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