Nextcloud Groupfolders users with read-only permissions for team folder can restore deleted files from trash bin
Priority LOW 20CWE-707Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Nextcloud Groupfolders provides admin-configured folders shared by everyone in a group or team. Prior to 14.0.11, 15.3.12, 16.0.15, 17.0.14, 18.1.8, 19.1.8, and 20.1.2, a user with read-only permission can restore a file from the trash bin. This vulnerability is fixed in 14.0.11, 15.3.12, 16.0.15, 17.0.14, 18.1.8, 19.1.8, and 20.1.2.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00303 23rd percentileScored 2026-11-07
Fix Fixed security-advisories (nextcloud): 14.0.11, 15.3.12, 16.0.15 +4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| nextcloud | security-advisories | before 14.0.11; 15.0.0-beta1 to before 15.3.12; 16.0.0 to before 16.0.15; 17.0.0-beta.1 to before 17.0.14; 18.0.0-beta.1 to before 18.1.8; 19.0.0-alpha.1 to before 19.1.8; 20.0.0 to before 20.1.2 | 14.0.11, 15.3.12, 16.0.15, 17.0.14, 18.1.8, 19.1.8, 20.1.2 | Patch available | CNA |
- security-advisories Vendornextcloud Affected before 14.0.11; 15.0.0-beta1 to before 15.3.12; 16.0.0 to before 16.0.15; 17.0.0-beta.1 to before 17.0.14; 18.0.0-beta.1 to before 18.1.8; 19.0.0-alpha.1 to before 19.1.8; 20.0.0 to before 20.1.2 Fixed in 14.0.11, 15.3.12, 16.0.15, 17.0.14, 18.1.8, 19.1.8, 20.1.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nextcloud:group_folders:*:*:*:*:*:*:*:* | before 14.0.11; 15.0.0 to before 15.3.12; 16.0.0 to before 16.0.15; 17.0.0 to before 17.0.14; 18.0.0 to before 18.1.8; 19.0.0 to before 20.1.2 | Vulnerable | nextcloud |
- cpe:2.3:a:nextcloud:group_folders:*:*:*:*:*:*:*:* Versions before 14.0.11; 15.0.0 to before 15.3.12; 16.0.0 to before 16.0.15; 17.0.0 to before 17.0.14; 18.0.0 to before 18.1.8; 19.0.0 to before 20.1.2 Vulnerable ·nextcloud
Remediation
- Fix · CNA security-advisories (nextcloud) Fixed in 14.0.11, 15.3.12, 16.0.15, 17.0.14, 18.1.8, 19.1.8, 20.1.2
Timeline
- 2026-10-02 Threatist record created from CVE-2025-66545
References
More nextcloud Group Folders vulnerabilities
- TI-2020-06571 Improper access control in Nextcloud Groupfolders CVSS 3.1HIGH 8.1
- TI-2025-30258 Nextcloud Server and Groupfolders app vulnerable to bypass of group folder quota limit using attachment in text file CVSS 3.1MEDIUM 6.5
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences