CVE-2025-64745
low-risk
Published 2025-11-13
Astro is a web framework. Starting in version 5.2.0 and prior to version 5.15.6, a Reflected Cross-Site Scripting (XSS) vulnerability exists in Astro's development server error pages when the `trailingSlash` configuration option is used. An attacker can inject arbitrary JavaScript code that executes in the victim's browser context by crafting a malicious URL. While this vulnerability only affects the development server and not production builds, it could be exploited to compromise developer environments through social engineering or malicious links. Version 5.15.6 fixes the issue.
Do I need to act?
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0.03% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
2
CVSS 2.7/10
Low
LOCAL
/ HIGH complexity
Affected Products (1)
Astro
Affected Vendors
References (4)
12
/ 100
low-risk
Severity
7/34 · Low
Exploitability
0/34 · Minimal
Exposure
5/34 · Minimal