CVE-2025-66470 MEDIUM

CVE-2025-66470: NiceGUI Stored/Reflected XSS in ui.interactive_image via unsanitized SVG content

Vendor Zauberzeug
Product nicegui
Weakness CWE-79 · XSS
Published December 9, 2025
Last update December 9, 2025
View on NVD All CVEs

CVSS base score

6.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

NiceGUI is a Python-based UI framework. Versions 3.3.1 and below are subject to a XSS vulnerability through the ui.interactive_image component of NiceGUI. The component renders SVG content using Vue's v-html directive without any sanitization. This allows attackers to inject malicious HTML or JavaScript via the SVG <foreignObject> tag whenever the image component is rendered or updated. This is particularly dangerous for dashboards or multi-user applications displaying user-generated content or annotations. This issue is fixed in version 3.4.0.

Key dates

02Disclosure timeline

December 9, 2025 CVE published
December 9, 2025 Record updated