FKIE_CVE-2025-65019

Vulnerability from fkie_nvd - Published: 2025-11-19 17:15 - Updated: 2025-11-25 15:09
Severity ?
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
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.
References
security-advisories@github.comhttps://github.com/withastro/astro/commit/9e9c528191b6f5e06db9daf6ad26b8f68016e533Patch
security-advisories@github.comhttps://github.com/withastro/astro/security/advisories/GHSA-fvmw-cj7j-j39qExploit, Third Party Advisory
Impacted products
Vendor Product Version
astro astro *
To clipboard 

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              "criteria": "cpe:2.3:a:astro:astro:*:*:*:*:*:node.js:*:*",
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  "descriptions": [
    {
      "lang": "en",
      "value": "Astro is a web framework. Prior to version 5.15.9, when using Astro\u0027s Cloudflare adapter (@astrojs/cloudflare) with output: \u0027server\u0027, 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."
    }
  ],
  "id": "CVE-2025-65019",
  "lastModified": "2025-11-25T15:09:57.477",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
          "version": "3.1"
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          "integrityImpact": "LOW",
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      "url": "https://github.com/withastro/astro/commit/9e9c528191b6f5e06db9daf6ad26b8f68016e533"
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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