CVE-2025-64764
November 19, 2025
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 Packages
https://github.com/withastro/astro.git (GITHUB):
Affected version(s) >=astro@0.18.0-next.5 <astro@5.15.8Fix Suggestion:
Update to version astro@5.15.8astro (NPM):
Affected version(s) >=0.0.0-i18n-routing-20231101144500 <5.15.8Fix Suggestion:
Update to version 5.15.8Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
HIGH
Availability
NONE
Weakness Type (CWE)
EPSS
Base Score:
0.47
