SSRF in ownCloud 10
CVE-2025-53828
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.002 (14.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Owncloud 10 — versions < 10.15.3
- Owncloud Sharepoint — versions < 0.4.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2025-53828?
- CVE-2025-53828 is a high-severity vulnerability in ownCloud 10, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.5/10. Published 2026-07-06.
- How severe is CVE-2025-53828?
- High severity. CVSS v3 base score is 8.5 out of 10.