Security Advisory

CVE-2025-65019

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-11-19 16:40:47

Last updated 2025-11-19 21:05:19

Assigner GitHub_M

State PUBLISHED

Description

Astro is a web framework. Prior to version 5.15.9, when using Astros 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.

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