1. Home
  2. CVE Database
  3. CVE-2025-66645
HIGH · 7.5

CVE-2025-66645

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 fil...

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.

CVSS Score

7.5

HIGH

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

Affected Products

VendorProductVersions
ZauberzeugNicegui< 3.4.0

Related Weaknesses (CWE)

CWE-22

References

FAQ

What is CVE-2025-66645?

CVE-2025-66645 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 fil...

How severe is CVE-2025-66645?

CVE-2025-66645 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-66645?

Check the references section above for vendor advisories and patch information. Affected products include: Zauberzeug Nicegui.