CVE-2025-64764
BaseFortify
Publication date: 2025-11-19
Last updated on: 2025-11-20
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| astro | astro | to 5.15.8 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-80 | The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a reflected Cross-Site Scripting (XSS) issue in the Astro web framework versions prior to 5.15.8. It occurs when the server islands feature is used in an application, allowing attackers to inject malicious scripts that are reflected back to users, regardless of the intended behavior of the component templates. This can lead to execution of unauthorized scripts in users' browsers.
How can this vulnerability impact me? :
The vulnerability can allow attackers to execute malicious scripts in the context of users' browsers, potentially leading to theft of sensitive information, session hijacking, or other malicious actions that compromise user security and trust.
What immediate steps should I take to mitigate this vulnerability?
Upgrade the Astro web framework to version 5.15.8 or later, as this version contains the patch that fixes the reflected XSS vulnerability related to the server islands feature.