Critical severity9.1NVD Advisory· Published Jul 6, 2026· Updated Jul 8, 2026

CVE-2025-53827

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.

Affected products

OwnCloud/Owncloudllm-fuzzy
Range: <10.15.3

Patches

Vulnerability mechanics

References

github.com/owncloud/security-advisories/security/advisories/GHSA-hvcx-ph66-mmvwnvd

News mentions

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