CVE-2025-59837

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

Published Oct 28, 2025 CVSS 3.1 · 7.2 High EPSS < 1% KEV · Not listed
Description
Astro 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-qcpr-679q-rhm2 Astro's bypass of image proxy domain validation leads to SSRF and potential XSS
History
Type Values Removed Values Added
First Time appeared Astro
Astro astro
CPEs cpe:2.3:a:astro:astro:*:*:*:*:*:node.js:*:*
Vendors & Products Astro
Astro astro
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Withastro
Withastro astro
Vendors & Products Withastro
Withastro astro
Type Values Removed Values Added
Description Astro 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.
Title astro allows bypass of image proxy domain validation leading to SSRF and potential XSS
Weaknesses CWE-79
CWE-918
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 29, 2025, 5:42 PM
Reserved
Sep 22, 2025, 2:34 PM
Status
Analyzed
Published
Oct 28, 2025, 8:15 PM
Modified
Oct 8, 2026, 11:10 AM