---
cve: "CVE-2025-65019"
severity: "MEDIUM"
cvss: 5.4
epss: "26%"
vendor: "withastro"
kev: false
exploited: false
published: "2025-11-19 17:15:53"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T04:34:52+02:00"
---

# CVE-2025-65019

> 5.4 MEDIUM · 🧪 PoC

## Beschreibung

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-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 7a07f0244c78a8f1889c1e08910ac2033c9a8c4c (Commit)
- 9e9c528191b6f5e06db9daf6ad26b8f68016e533 (Commit)

## Referenzen

- <https://github.com/withastro/astro/security/advisories/GHSA-fvmw-cj7j-j39q>
- <https://github.com/withastro/astro/commit/9e9c528191b6f5e06db9daf6ad26b8f68016e533>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-65019) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_