CVE-2025-66645

Published: Dec 9, 2025

Modified: Dec 10, 2025

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

Vendor	Product	Versions
zauberzeug	nicegui	affected `< 3.4.0`

Weaknesses (CWE)

CWE-22

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

References

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

x_refsource_CONFIRM

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

x_refsource_MISC

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CVE-2025-66645

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References