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    CVE-2026-3748

    A security flaw has been discovered in Bytedesk up to 1.3.9. This affects the function uploadFile of the file source-code/src/main/java/com/bytedesk/core/upload/UploadRestController.java of the component SVG File Handler. Performing a manipulation results in unrestricted upload. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.4.5.1 is able to mitigate this issue. The patch is named 975e39e4dd527596987559f56c5f9f973f64eff7. Upgrading the affected component is recommended.

    Published:Mar 8, 2026
    Last Modified:Apr 18, 2026
    EPS:Mar 8, 2026
    EPSS Score:0.00118
    CVSS Score:6.3

    Affected Products

    Vendor
    Bytedesk
    Product
    Bytedesk

    Exploits

    https://github.com/Bytedesk/bytedesk/issues/18https://github.com/Bytedesk/bytedesk/issues/18#issue-3993448721https://github.com/Bytedesk/bytedesk/issues/18#issuecomment-3976672973

    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