CVE Tools
Sign in

CVE-2025-65019

Astro Cloudflare adapter has a Stored Cross Site Scripting vulnerability in /_image endpoint

Published: Nov 19, 2025Updated: Nov 25, 2025 Sources: CVE List NVD GHSACWE-79
NVD MITRE
5.4CVSSMEDIUM
EPSS Score
0.2%
Top 88.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-79

Affected Products

astrowithastro
Library
OSS Libraries / web-framework
astronpmOSS Libraries
astroastro
Mixed
OSS Libraries / web-framework
withastrooss-projectOSS Librariesaka astro, @astrojs/cloudflare
npmpackage-ecosystemOSS Libraries
astrooss-projectUSOSS Librariesaka @astrojs/node, @astrojs/cloudflare

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/withastro/astro/security/advisories/GHSA-fvmw-cj7j-j39q
github.com
https://github.com/withastro/astro/commit/9e9c528191b6f5e06db9daf6ad26b8f68016e533
github.com
https://nvd.nist.gov/vuln/detail/CVE-2025-65019
nvd.nist.gov
and 1 more references View all →

Timeline

Published
Nov 19, 2025
Last Updated
Nov 25, 2025

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-65019 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows