Improper access control in Nextcloud Groupfolders
Priority LOW 39CWE-284Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-284.
Summary
Improper access control in Groupfolders app 4.0.3 allowed to delete hidden directories when when renaming an accessible item to the same name.
Why it matters now
EPSS 0.01856 79th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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 |
|---|---|---|---|---|---|
| — | Nextcloud Groupfolders | 4.0.4 | — | No fix listed | CNA |
- Nextcloud Groupfolders Vendor— Affected 4.0.4 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nextcloud:group_folders:*:*:*:*:*:*:*:* | before 4.0.4 | Vulnerable | nextcloud |
| cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | 32 | Vulnerable | Fedoraproject |
- cpe:2.3:a:nextcloud:group_folders:*:*:*:*:*:*:*:* Versions before 4.0.4 Vulnerable ·nextcloud
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2020-8153
- 2026-10-03 Alias added: GHSA-4mxw-7xgq-cm5c
References
Sources
- CVE-2020-8153 · CVE Program
- CVE-2020-8153 · NVD
- FIRST EPSS
- GHSA-4mxw-7xgq-cm5c · GitHub Advisory Database · CC BY 4.0
- CVE-2020-8153 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences