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

Quick assessment

Affected
zauberzeug nicegui
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NiceGUI是NiceGUI开源的一个易于使用、基于 Python 的 UI 框架。 NiceGUI 3.3.1及之前版本存在安全漏洞，该漏洞源于ui.interactive_image组件未清理SVG内容，可能导致跨站脚本攻击。

CVSS 6.1 · Medium EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2025-66470

Vulnerability Information
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Vulnerability Title
NiceGUI Stored/Reflected XSS in ui.interactive_image via unsanitized SVG content
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
NiceGUI 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NiceGUI是NiceGUI开源的一个易于使用、基于 Python 的 UI 框架。 NiceGUI 3.3.1及之前版本存在安全漏洞，该漏洞源于ui.interactive_image组件未清理SVG内容，可能导致跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
zauberzeug nicegui < 3.4.0 -

II. Public POCs for CVE-2025-66470

# POC Description Source Link Shenlong Link
1 A fast, simple scanner for detecting CVE-2025-66470 - XSS vulnerability in NiceGUI's ui.interactive_image component. https://github.com/Jmehta10/CVE-2025-66470 POC Details
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III. Intelligence Information for CVE-2025-66470

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Patches & Fixes for CVE-2025-66470 (1)

Vendor Advisories for CVE-2025-66470 (1)

IV. Related Vulnerabilities

Same product: nicegui
Same vendor: zauberzeug
Same weakness: CWE-79

V. Comments for CVE-2025-66470

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