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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| withastro | astro | < 5.15.8 | — |
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Astro - Reflected XSS via server islands feature http/cves/2025/CVE-2025-64764.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | astro | < 5.15.8 | 5.15.8 | GHSA-wrwg-2hg8-v723 |