Astro
CVE-2025-64745
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 2.7 (LOW). Attack characteristics: local attack vector, high complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.06%. |
| Exploit ScenarioDerived | A local attacker with access to the system could inject malicious scripts into web pages viewed by other users. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAIv1 – Mar 28, 2026
Astro is a web framework. Rated low severity (CVSS 2.7), this vulnerability is no authentication required. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in npm
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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. Affected products include: Astro. Version information: version 5.2.0.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
5DescriptionNVD
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.
Executive ViewAI
CVE-2025-64745 is a low-severity vulnerability in version 5.2.0 and involving cross-site scripting (CVSS 2.7). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation. A patch is available and can be applied during standard maintenance windows.
Apply vendor patch during routine maintenance. Standard cross-site scripting mitigations apply if patching is delayed.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)NVD
SQL Injection exists in the Saxum Astro 4.0.14 component for Joomla!. Rated critical severity (CVSS 9.8), this vulnerabi
Astro web framework versions prior to 9.5.4 contain a server-side request forgery vulnerability in error page handling t
Authorization bypass in the Astro web framework version 6.4.7 lets remote unauthenticated attackers reach protected rout
Astro is a web framework for content-driven websites. Rated high severity (CVSS 7.8), this vulnerability is remotely exp
Server-side request forgery in Astro's built-in image proxy lets unauthenticated remote attackers force the server to fe
Astro is a web framework for content-driven websites. Rated high severity (CVSS 7.2), this vulnerability is remotely exp
Astro is a web framework for content-driven websites. Rated medium severity (CVSS 6.9), this vulnerability is remotely e
Astro is a web framework. Rated medium severity (CVSS 6.9), this vulnerability is remotely exploitable, no authenticatio
Astro is a web framework. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authenticatio
Unvalidated reflection of the X-Forwarded-Host header in Astro (versions before 5.14.3) lets remote, unauthenticated att
Astro web framework versions 9.0.0 through 9.5.3 fail to validate remote image domains when the inferSize option is enab
Base-path prefix bypass in Astro prior to 7.2.4 allows unauthenticated remote attackers to reach protected server-side r
Exploit-DB