CVE-2026-59727
Gravedad CVSS v4.0:
BAJA
Tipo:
CWE-79
Neutralización incorrecta de la entrada durante la generación de la página web (Cross-site Scripting)
Fecha de publicación:
27/07/2026
Última modificación:
28/07/2026
Descripción
*** Pendiente de traducción *** 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 HTML-escaping it. If a developer reflects attacker-controlled input into one of these directives, an attacker can break out of the attribute and inject arbitrary HTML/JavaScript into the server-rendered output, resulting in reflected cross-site scripting (XSS). Exploitation requires the application developer to have written a non-idiomatic pattern — passing untrusted, request-derived input directly into a transition directive. Astro applications that do not route untrusted input into these directives are unaffected. This issue has been fixed in version 7.0.4.
Impacto
Puntuación base 4.0
2.10
Gravedad 4.0
BAJA
Referencias a soluciones, herramientas e información
- https://github.com/withastro/astro/commit/7ba0bb1dc7516e88caff9abd7767322af44b0294
- https://github.com/withastro/astro/pull/17212
- https://github.com/withastro/astro/releases/tag/astro@7.0.4
- https://github.com/withastro/astro/security/advisories/GHSA-7pw4-f3q4-r2p2
- https://github.com/withastro/astro/security/advisories/GHSA-7pw4-f3q4-r2p2