CVE-2021-33828: ownCloud Files Antivirus

High severity, CVSS 8.8. EPSS: 1.2% chance of exploitation in the next 30 days.

The files_antivirus component before 1.0.0 for ownCloud mishandles the protection mechanism by which malicious files (that have been uploaded to a public share) are supposed to be deleted upon detection.

Affected products

• ownCloud Files Antivirus: before 1.0.0 (fixed in 1.0.0)

Published 2022-01-15. Last modified 2026-06-17.