CVE-2025-66645

Published: Dec 9, 2025Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitability: 3.9 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

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.

Affected (1)

Products: Zauberzeug: Nicegui

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Zauberzeug Nicegui	Before 3.4.0

Related CWEs

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (3)

https://github.com/zauberzeug/nicegui/commit/a1b89e2a24e1911a40389ace2153a37f4eea92a9

Source: security-advisories@github.com

Patch

https://github.com/zauberzeug/nicegui/security/advisories/GHSA-hxp3-63hc-5366

Source: security-advisories@github.com

ExploitVendor Advisory

https://github.com/zauberzeug/nicegui/security/advisories/GHSA-hxp3-63hc-5366

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

ExploitVendor Advisory

Timeline

No history available yet.