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Vulnerability record · CVE-2025-53827 · published 6 July 2026

CVE-2025-53827: ownCloud Core is the server-side component of the file storage, synchronization, and sharing application ownCl…

ownCloud Core is the server-side component of the file storage, synchronization, and sharing application ownCloud Classic. In versions prior to 10.15.3, the Updater on ownCloud 10 before 10.15.3 has an exposed dangerous method or function. Attackers with administrative privileges may leverage functionality to execute arbitrary code. This issue has been fixed in version 10.15.3.

9.1 CVSS 3.1 Critical EPSS 0.62% · top 52.6% CWE-749 · CWE-749 Deferred
9.1CVSS 3.1 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
8 Jul 2026Last modified by NVD

Description

ownCloud Core is the server-side component of the file storage, synchronization, and sharing application ownCloud Classic. In versions prior to 10.15.3, the Updater on ownCloud 10 before 10.15.3 has an exposed dangerous method or function. Attackers with administrative privileges may leverage functionality to execute arbitrary code. This issue has been fixed in version 10.15.3.

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

References

LinkTags
https://github.com/owncloud/security-advisories/security/advisories/GHSA-hvcx-ph66-mmvw

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Source: NIST National Vulnerability Database (record CVE-2025-53827), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.