Nextcloud Server has incomplete sanitization of SVG files allows to embed other images into previews
Priority LOW 30CWE-706Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Nextcloud Server is a self hosted personal cloud system. After an admin enables the default-disabled SVG preview provider, a malicious user could upload a manipulated SVG file referencing paths. If the file would exist the preview of the SVG would preview the other file instead. It is recommended that the Nextcloud Server is upgraded to 27.1.10, 28.0.6 or 29.0.1 and Nextcloud Enterprise Server is upgraded to 24.0.12.15, 25.0.13.10, 26.0.13.4, 27.1.10, 28.0.6 or 29.0.1.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.007 53rd percentileScored 2026-11-07
Fix Fixed security-advisories (nextcloud): 29.0.1, 28.0.6, 27.1.10
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 | 29.0.0 to before 29.0.1; 28.0.0 to before 28.0.6; 27.0.0 to before 27.1.10 | 29.0.1, 28.0.6, 27.1.10 | Patch available | CNA |
- security-advisories Vendornextcloud Affected 29.0.0 to before 29.0.1; 28.0.0 to before 28.0.6; 27.0.0 to before 27.1.10 Fixed in 29.0.1, 28.0.6, 27.1.10 Patch available CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* | 24.0.0 to before 24.0.12.15; 25.0.0 to before 25.0.13.10; 26.0.0 to before 26.0.13.4 | Vulnerable | nextcloud |
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* | 27.0.0 to before 27.1.10 | Vulnerable | nextcloud |
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* | 27.0.0 to before 27.1.10 | Vulnerable | nextcloud |
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* | 28.0.0 to before 28.0.6 | Vulnerable | nextcloud |
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* | 28.0.0 to before 28.0.6 | Vulnerable | nextcloud |
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* | 29.0.0 to before 29.0.1 | Vulnerable | nextcloud |
| cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* | 29.0.0 to before 29.0.1 | Vulnerable | nextcloud |
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* Versions 24.0.0 to before 24.0.12.15; 25.0.0 to before 25.0.13.10; 26.0.0 to before 26.0.13.4 Vulnerable ·nextcloud
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* Versions 27.0.0 to before 27.1.10 Vulnerable ·nextcloud
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* Versions 27.0.0 to before 27.1.10 Vulnerable ·nextcloud
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* Versions 28.0.0 to before 28.0.6 Vulnerable ·nextcloud
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* Versions 28.0.0 to before 28.0.6 Vulnerable ·nextcloud
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:-:*:*:* Versions 29.0.0 to before 29.0.1 Vulnerable ·nextcloud
- cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:enterprise:*:*:* Versions 29.0.0 to before 29.0.1 Vulnerable ·nextcloud
Remediation
- Fix · CNA security-advisories (nextcloud) Fixed in 29.0.1, 28.0.6, 27.1.10
Timeline
- 2026-10-02 Threatist record created from CVE-2024-52515
- 2026-10-07 EPSS moved to the 50th–90th percentile
References
More Nextcloud Server vulnerabilities
- TI-2023-20855 Users can delete external storage mount points CVSS 3.1HIGH 7.7
- TI-2023-11091 Nextcloud download permissions can be changed by resharer CVSS 3.1HIGH 7.5
- TI-2023-10624 Nextcloud Server vulnerable to SSRF via filter bypass due to lax checking on IPs CVSS 3.1MEDIUM 5.3
- TI-2025-37238 Cross-site scripting in Nextcloud CVSS 3.1MEDIUM 6.4
- TI-2023-11086 nextcloud vulnerable to Uncontrolled Resource Consumption CVSS 3.1MEDIUM 6.5
- TI-2022-18738 Exception logging in Sharepoint app reveals clear-text connection details CVSS 3.1MEDIUM 6.5
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences