CVE-2025-64764
High
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.
SeverityHigh
CVSS7.1
Exploit probability—
Product
Astro
PublishedNov 19, 2025
First seenNov 19, 2025
Weakness typeCWE-80CWE-80
How to fix
Update
- astro astro5.15.8 or later
- astro5.15.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| astro astro | v < 5.15.8 | 5.15.8 |
| astronpm | v < 5.15.8 | 5.15.8 |
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