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    CVE-2025-66648

    vega-functions provides function implementations for the Vega expression language. Prior to version 6.1.1, for sites that allow users to supply untrusted user input, malicious use of an internal function (not part of the public API) could be used to run unintentional javascript (XSS). This issue is fixed in vega-functions `6.1.1`. There is no workaround besides upgrading. Using `vega.expressionInterpreter` as described in CSP safe mode does not prevent this issue.

    Published:Jan 5, 2026
    Last Modified:Feb 5, 2026
    EPS:Jan 5, 2026
    EPSS Score:0.00038
    CVSS Score:7.2

    Affected Products

    Vendor
    Vega-functions Project
    Product
    Vega-functions
    Vendor
    Vega Project
    Product
    Vega-functions

    Exploits

    https://github.com/vega/vega/security/advisories/GHSA-m9rg-mr6g-75gm

    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