CVE-2025-64764

PoC —

CVSS 3.1

5.4 medium

EPSS

<1%p41

Published

Nov 19, 2025 (Nov 19, 2025)

Modified

Jun 17, 2026

Description

Astro is a web framework. Prior to version 5.15.8, a reflected XSS vulnerability is present when the server islands feature is used in the targeted application, regardless of what was intended by the component template(s). This issue has been patched in version 5.15.8.

Vendors: astro
Products: astro
Weakness: CWE-80
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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