medium5.4
CVE-2025-66512
Nextcloud Server is a self hosted personal cloud system.
Impact
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Server Enterprise prior to 31.0.12 and 32.0.3, a missing sanitization allowed malicious users to circumvent the content security policy when a malicious user manages to trick a user it viewing an uploaded SVG outside of the Nextcloud Servers web page.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nextcloud | Nextcloud Server | from 31.0.0 before 31.0.12 from 32.0.0 before 32.0.3 |