Description

Astro is a web framework. Prior to version 5.15.9, when using Astro's Cloudflare adapter (@astrojs/cloudflare) with output: 'server', the image optimization endpoint (/_image) contains a critical vulnerability in the isRemoteAllowed() function that unconditionally allows data: protocol URLs. This enables Cross-Site Scripting (XSS) attacks through malicious SVG payloads, bypassing domain restrictions and Content Security Policy protections. This issue has been patched in version 5.15.9.

INFO

Published Date :

2025-11-19T16:40:47.826Z

Last Modified :

2025-11-19T21:05:19.247Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2025-65019 vulnerability.

Vendors Products
Astro
  • Astro
Withastro
  • Astro
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-65019.

URL Resource
https://github.com/withastro/astro/commit/9e9c528191b6f5e06db9daf6ad26b8f68016e533 cve-icon cve-icon
https://github.com/withastro/astro/security/advisories/GHSA-fvmw-cj7j-j39q cve-icon cve-icon
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CVSS Vulnerability Scoring System

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