Security Advisory
CVE-2025-66645
7.5
HIGH
Vulnerability 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.
Published Date
December 9, 2025
Official Source
NIST NVD Advisory