SecuriTricks - CVE-2025-53354

Description

NiceGUI is a Python-based UI framework. Versions 2.24.2 and below are at risk for Cross-Site Scripting (XSS) when developers render unescaped user input into the DOM using ui.html(). NiceGUI did not enforce HTML or JavaScript sanitization, so applications that directly combine components like ui.input() with ui.html() or ui.chat_message with HTML content without escaping may allow attackers to execute arbitrary JavaScript in the user’s browser. Applications that do not pass untrusted input into ui.html() are not affected. This issue is fixed in version 3.0.0.

Product(s) Impacted

Vendor	Product	Versions
Nicegui	Nicegui	<2.24.2, 3.0.0

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	nicegui	nicegui	<2.24.2	/	/	/	/	/	/	/
a	nicegui	nicegui	3.0.0	/	/	/	/	/	/	/

References

https://github.com/zauberzeug/nicegui/commit/4673dc35c94a0c7339e2164378b0977332e60775

https://github.com/zauberzeug/nicegui/security/advisories/GHSA-8c95-hpq2-w46f

CVSS Score

6.1 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: CHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

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

View Vector String

Timeline

Published: Oct. 3, 2025, 8:15 p.m.
Last Modified: Oct. 3, 2025, 8:15 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security-advisories@github.com

CVE-2025-53354