Home/CVE/Astro is a web framework that includes an image proxy. In versions 5.13.4 and later before 5.13.10, the image proxy doma
CVE

CVE-2025-59837

Astro is a web framework that includes an image proxy. In versions 5.13.4 and later before 5.13.10, the image proxy doma

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.

HIGH · CVSS 7.2 EPSS 0.00044
Act now
  • Public exploit or PoC is available
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

1
astro>= 5.13.4 and < 5.13.10
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm astro HIGH fixed in 5.13.10
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-qcpr-679q-rhm2github.com
▣

Scoring & Timeline

7.2
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD28 Oct 2025 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/withastro/astro/commit/1e2499e8ea83ebfa233a18a7499e1ccf169e56f4Patch
https://github.com/withastro/astro/commit/9ecf3598e2b29dd74614328fde3047ea90e67252Patch
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