What is CVE-2021-33828?

CVE-2021-33828 is a high-severity vulnerability in Owncloud Files Antivirus, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-01-15.

How severe is CVE-2021-33828?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Owncloud Files Antivirus

CVE-2021-33828

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.

Vulnerability class: Unrestricted File Upload

EPSS: 0.012 (63.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Owncloud Files_antivirus
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
cve@mitre.org (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-33828?: CVE-2021-33828 is a high-severity vulnerability in Owncloud Files Antivirus, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2022-01-15.
How severe is CVE-2021-33828?: High severity. CVSS v3 base score is 8.8 out of 10.