CVE-2026-59727 Astro: Cross-site scripting via unescaped transition:* directive values on hydrated islands

Astro is a web framework for content-driven websites. In versions 3.10.0 through 7.0.3, when a transition:persist, transition:scope, or transition:persist-props directive is applied to a client-hydrated client: component, Astro copied the directive value onto the rendered element without...

CVE-2026-59727

CVE-2026-59727 (Astro): In versions 3.10.0–7.0.3, unescaped values copied from transition:persist, transition:scope, or transition:persist-props into the rendered element enable reflected XSS if an attacker-controlled input is reflected into these directives. The issue arises when untrusted inpu...