CVE-2025-53827 | ownCloud Core is the server-side component of the file stora… | CVSS 9.1 CRITICAL

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.

Metadata

CVE ID: CVE-2025-53827
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2025-07-09 14:14 UTC
Published: 2026-07-06 14:31 UTC
Last updated: 2026-07-07 16:58 UTC
Primary CWE: CWE-749
CWE-749: Exposed Dangerous Method or Function
Vendor / Product: owncloud / ownCloud Core
Sources: cve.org · NVD

Severity & Metrics

9.1 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
owncloud	ownCloud Core	—	< 10.15.3

Weakness (CWE)

CWE	Source	Description
CWE-749	cna	CWE-749: Exposed Dangerous Method or Function

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.1	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References (1)

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