Detections
Analytics
CVE-2026-21872
medium
Description
NiceGUI is a Python-based UI framework. From versions 2.22.0 to 3.4.1, an unsafe implementation in the click event listener used by ui.sub_pages, combined with attacker-controlled link rendering on the page, causes XSS when the user actively clicks on the link. This issue has been patched in version 3.5.0.
References
https://github.com/zauberzeug/nicegui/security/advisories/GHSA-m7j5-rq9j-6jj9