CVE-2025-53828High· 8.5▾ Twilight

SharePoint for ownCloud is an application for using SharePoint with the file storage, synchronization, and sharing application ownCloud Classic

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score47/ 100 · Moderate

impact 46.8 · likelihood 0.1 · exploitation 0

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Proof of concept

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Published

Jul 6, 2026

Updated

Sep 30, 2026

CVSS

8.5

Vendor

—

Product

—

CWE

CWE-918

Depth score

47 · Moderate

EPSS

0.39% · p31

Platforms

—

Source

NVD

Vector

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

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

3 events · 86 days

Jul 6, 2026Published
Disclosed via NVD
Sep 30, 2026Record revised
Last analysed / modified upstream
Sep 30, 2026EPSS first tracked
0.4%

CWE-918 #nvd

Full technical detail▾

Overview

SharePoint for ownCloud is an application for using SharePoint with the file storage, synchronization, and sharing application ownCloud Classic. In SharePoint for ownCloud prior to version 0.4.1, which corresponds to ownCloud 10 prior to 10.15.3, an attacker with administrative privileges can use a SSRF vulnerability in the SharePoint app to execute arbitrary code on the system. Upgrade ownCloud 10 to version 10.15.3 or later to receive SharePoint for ownCloud 0.4.1, the fixed version.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

[email protected] — https://github.com/owncloud/security-advisories/security/advisories/GHSA-4m66-rpfj-m5f6

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd

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