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.sub_pages 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 patched in version 3.5.0.
Exploitability
AV:NAC:LPR:NUI:NScope
S:CImpact
C:LI:LA:N7.2/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NInjection