---
id: CVE-2025-66470
title: NiceGUI is a Python-based UI framework
summary: >-
  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
  sanitiz…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: zauberzeug
product: nicegui
affected:
  - nicegui < 3.4.0
patched:
  - nicegui 3.4.0
published: '2025-12-09'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T20:10:01.970'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66470'
references:
  - url: >-
      https://github.com/zauberzeug/nicegui/commit/58ad0b36e19922de16bbc79ea3ddd29851b1a3e3
    label: security-advisories@github.com
  - url: >-
      https://github.com/zauberzeug/nicegui/security/advisories/GHSA-2m4f-cg75-76w2
    label: security-advisories@github.com
  - url: >-
      https://github.com/zauberzeug/nicegui/security/advisories/GHSA-2m4f-cg75-76w2
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66470'
  - url: 'https://github.com/zauberzeug/nicegui'
tags:
  - nvd
  - exploit-available
  - osv
  - pip
epss: 0.00254
epssPercentile: 0.16852
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/Jmehta10/CVE-2025-66470'
  checkedAt: '2026-10-27T16:49:11.633Z'
exploitAvailable: true
aliases:
  - GHSA-2m4f-cg75-76w2
  - PYSEC-2026-1696
ecosystem: pip
ingestedAt: '2026-07-08T18:25:44.559Z'
---

## Overview

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.

## Affected

- `nicegui < 3.4.0`

## Remediation

Upgrade past the affected range:

- `nicegui 3.4.0`

## Package advisory (CVE-2025-66470)

Affected packages:

- `nicegui < 3.4.0`

Patched in:

- `nicegui 3.4.0`

Source: https://osv.dev/vulnerability/GHSA-2m4f-cg75-76w2