CVE-2025-66645

PoC —

CVSS 3.1

7.5 high

EPSS

1%p64

Published

Dec 9, 2025 (Dec 9, 2025)

Modified

Jun 17, 2026

Description

NiceGUI is a Python-based UI framework. Versions 3.3.1 and below are vulnerable to directory traversal through the App.add_media_files() function, which allows a remote attacker to read arbitrary files on the server filesystem. This issue is fixed in version 3.4.0.

Vendors: zauberzeug
Products: nicegui
Weakness: CWE-22
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.1%)

In the news0 stories

No ingested article mentions this CVE yet.