Description
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.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
- Attack Vector
- network
- Complexity
- low
- Privileges
- none
- User Action
- required
- Scope
- unchanged
- Confidentiality
- none
- Integrity
- low
- Availability
- low
- Weaknesses
- CWE-80CWE-79
Metadata
- Primary Vendor
- NEXTCLOUD
- Published
- 12/5/2025
- Last Modified
- 12/9/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
nextcloud : nextcloud_servernextcloud : nextcloud_servernextcloud : nextcloud_servernextcloud : nextcloud_server
AI-Powered Remediation
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