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    CVE-2025-64745

    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.

    Published:Nov 13, 2025
    Last Modified:Nov 25, 2025
    EPS:Nov 13, 2025
    EPSS Score:0.0002
    CVSS Score:2.7

    Affected Products

    Vendor
    Astro
    Product
    Astro
    Vendor
    Withastro
    Product
    Astro

    Exploits

    https://github.com/withastro/astro/security/advisories/GHSA-w2vj-39qv-7vh7

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High