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

{
    "lastseen": "",
    "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.",
    "published": "2025-11-19T16:40:47.826Z",
    "modified": "2025-11-19T21:05:19.247Z",
    "type": "cve",
    "title": "Astro Cloudflare adapter has a Stored Cross Site Scripting vulnerability in /_image endpoint",
    "source": "GitHub_M",
    "references": "https://github.com/withastro/astro/security/advisories/GHSA-fvmw-cj7j-j39q\nhttps://github.com/withastro/astro/commit/9e9c528191b6f5e06db9daf6ad26b8f68016e533",
    "id": "CVE-2025-65019",
    "bulletinFamily": "",
    "cwe": [
        "CWE-79"
    ],
    "cvelist": null,
    "sourceData": "withastro astro < 5.15.9",
    "sourceHref": "",
    "cvss": {
        "score": 5.4,
        "severity": "MEDIUM",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
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        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "astro",
    "version": "< 5.15.9",
    "vendor": "withastro",
    "ai_description": "",
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    "ai_score": 0
}