astro allows bypass of image proxy domain validation leading to SSRF and potential XSS

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-59837
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-10-28 20:15:49 UTC
Updated2026-10-08 11:10:00 UTC
DescriptionAstro is a web framework that includes an image proxy. In versions 5.13.4 and later before 5.13.10, the image proxy domain validation can be bypassed by using backslashes in the href parameter, allowing server-side requests to arbitrary URLs. This can lead to server-side request forgery (SSRF) and potentially cross-site scripting (XSS). This vulnerability exists due to an incomplete fix for CVE-2025-58179. Fixed in 5.13.10.

Risk And Classification

Primary CVSS: v3.1 7.2 HIGH from [email protected]

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

Problem Types: CWE-79 | CWE-918 | CWE-918 CWE-918: Server-Side Request Forgery (SSRF) | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1[email protected]Secondary7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
3.1CNADECLARED7.2HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Astro Astro All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Withastro Astro affected >= 5.13.4, < 5.13.10 Not specified

References

ReferenceSourceLinkTags
github.com/withastro/astro/security/advisories/GHSA-qcpr-679q-rhm2 [email protected] github.com Exploit, Third Party Advisory
github.com/withastro/astro/commit/1e2499e8ea83ebfa233a18a7499e1ccf169e56f4 [email protected] github.com Patch
github.com/withastro/astro/commit/9ecf3598e2b29dd74614328fde3047ea90e67252 [email protected] github.com Patch
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