CVE-2025-66512
Nextcloud Server vulnerable to XSS in SVG images when opened outside of Nextcloud
Summary
Nextcloud Server vulnerable to XSS in SVG images when opened outside of Nextcloud
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- patch github.com
- patch github.com
- web hackerone.com