PT-2025-49682 · Nicegui · Nicegui

Published 2025-12-09 · Updated 2025-12-11 · CVE-2025-66470

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions NiceGUI versions 3.3.1 and below

Description NiceGUI, a Python-based UI framework, has an issue where the ui.interactive image component can be exploited for cross-site scripting (XSS). The component renders Scalable Vector Graphics (SVG) content using Vue's v-html directive without proper sanitization. This allows attackers to inject malicious HTML or JavaScript code through the SVG <foreignObject> tag when the image component is rendered or updated. This is especially concerning in applications that display user-generated content or annotations, such as dashboards or multi-user applications.

Recommendations Update to version 3.4.0 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2025-66470

GHSA-2M4F-CG75-76W2

Affected Products

Nicegui

References · 8

• 🔥 https://github.com/zauberzeug/nicegui/security/advisories/GHSA-2m4f-cg75-76w2 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66470.json · Exploit
• https://github.com/zauberzeug/nicegui/commit/58ad0b36e19922de16bbc79ea3ddd29851b1a3e3 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-66470 · Security Note
• https://osv.dev/vulnerability/CVE-2025-66470 · Vendor Advisory
• https://twitter.com/CVEnew/status/1998198608433205268 · Twitter Post
• https://twitter.com/dailycve/status/1999236801567891647 · Twitter Post
• https://t.me/CVEtracker/39173 · Telegram Post