NiceGUI is vulnerable to XSS via Unescaped URL in ui.navigate.history.push() / replace()

Summary XSS risk exists in NiceGUI when developers pass attacker-controlled strings into ui.navigate.history.push or ui.navigate.history.replace. These helpers are documented as History API wrappers for updating the browser URL without page reload. However, if the URL argument is embedded into...

EUVD-2026-1478

NiceGUI is a Python-based UI framework. From versions 2.13.0 to 3.4.1, there is a XSS risk in NiceGUI when developers pass attacker-controlled strings into ui.navigate.history.push or ui.navigate.history.replace. These helpers are documented as History API wrappers for updating the browser URL...

CVE-2025-59948 FreshRSS is vulnerable to XSS due to lack of CSP on HTML query page

FreshRSS is a free, self-hostable RSS aggregator. Versions 1.26.3 and below do not sanitize certain event handler attributes in feed content, so by finding a page that renders feed entries without CSP, it is possible to execute an XSS payload. The Allow API access authentication setting needs to ...

PT-2025-39918

Name of the Vulnerable Software and Affected Versions FreshRSS versions 1.26.3 and below Description FreshRSS does not properly sanitize event handler attributes within feed content. This can lead to cross-site scripting XSS if a page renders feed entries without a Content Security Policy CSP. Th...