CVE-2025-64764— Astro is vulnerable to Reflected XSS via the server islands feature
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I. Basic Information for CVE-2025-64764
Vulnerability Information
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Vulnerability Title
Astro is vulnerable to Reflected XSS via the server islands feature
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Astro 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Astro是Astro开源的一个内容驱动网站的 web 框架。 Astro 5.15.8之前版本存在安全漏洞，该漏洞源于服务器岛屿功能存在反射型跨站脚本漏洞，可能导致恶意代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-64764
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Astro 5.15.8 contains a reflected XSS caused by improper handling of server islands feature, letting remote attackers execute scripts, exploit requires use of server islands in the application. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-64764.yaml | POC Details |
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Same Patch Batch · withastro · 2025-11-19 · 4 CVEs total
| CVE-2025-65019 | 5.4 MEDIUM | Astro Cloudflare adapter has a Stored Cross Site Scripting vulnerability in /_image endpoi |
| CVE-2025-64757 | 3.5 LOW | Astro Development Server is Vulnerable to Arbitrary Local File Read |
| CVE-2025-64765 | Astro middleware authentication checks based on url.pathname can be bypassed via url encod |
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V. Comments for CVE-2025-64764
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