The files_antivirus component before 1.0.0 for ownCloud mishandles the protection…
Priority MEDIUM 40CWE-434Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-434.
Summary
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.
Why it matters now
EPSS 0.01156 67th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-33828
- 2026-10-03 Alias added: GHSA-jx89-9m5w-hcfc
References
More ownCloud Files Antivirus vulnerabilities
- TI-2021-13177 The files_antivirus component before 1.0.0 for ownCloud allows OS Command Injection via the administration settings. CVSS 3.1HIGH 7.2
- TI-2020-12698 When using an object storage like S3 as the file store, when a user creates a public link… CVSS 3.1MEDIUM 5.7
Sources
- CVE-2021-33828 · CVE Program
- CVE-2021-33828 · NVD
- FIRST EPSS
- GHSA-jx89-9m5w-hcfc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences