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CVE-2025-65019

CVE-2025-65019 · Astro Cloudflare adapter has a Stored Cross Site Scripting vulnerability in /_image endpoint

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.4 · Medium · EPSS 0.3% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • astro

    Versions
    • < 5.15.9: Affected

    No fix published

  • astro npm

    Affected ranges
    • SEMVER: < 5.15.9

    Update to 5.15.9

Original sources

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