Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization HTML tag escaping
MITRE ATT&CK
1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.1 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.54%. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system. |
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Alert meAnalysisAIv1 – Mar 28, 2026
Astro is a web framework. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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 under CWE-80. Astro is a web framework. Prior to version 5.15.8, a reflected XSS vulnerability is present when the server islands feature is used in the targeted application, regardless of what was intended by the component template(s). This issue has been patched in version 5.15.8. Affected products include: Astro. Version information: version 5.15.8.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/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. Prior to version 5.15.8, a reflected XSS vulnerability is present when the server islands feature is used in the targeted application, regardless of what was intended by the component template(s). This issue has been patched in version 5.15.8.
Executive ViewAI
Organizations using Astro face moderate risk from CVE-2025-64764 rated CVSS 7.1. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available, increasing the risk of exploitation. A patch is available and should be applied as part of regular vulnerability management.
Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.
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