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    CVE-2026-24447

    If a malformed data is input to the affected product, a CSV file downloaded from the affected product may contain such malformed data. When a victim user download and open such a CSV file, the embedded code may be executed in the user's environment. Note that Movable Type 7 series and 8.4 series, which are End-of-Life (EOL), are affected by the vulnerability as well.

    Published:Feb 4, 2026
    Last Modified:Apr 18, 2026
    EPS:Feb 4, 2026
    EPSS Score:0.00016
    CVSS Score:6.5

    Affected Products

    Vendor
    Six Apart
    Product
    Movable Type
    Vendor
    Six Apart Ltd
    Product
    Movable Type

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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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