CVE-2026-21873

NiceGUI is a Python-based UI framework. From versions 2.22.0 to 3.4.1, an unsafe implementation in the pushstate event listener used by ui.subpages allows an attacker to manipulate the fragment identifier of the URL, which they can do despite being cross-site, using an iframe. This issue has been...

IFrame Remove Filter - Moderately critical - Cross site scripting - SA-CONTRIB-2025-051

This module enables you to add a filter to text formats Full HTML, Filtered HTML, which will remove every iframe where the "src" is not on the allowlist. The module doesn't sufficiently filter these iframes in certain situations. This vulnerability is mitigated by the fact that an attacker must b...