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    CVE-2022-4055

    When xdg-mail is configured to use thunderbird for mailto URLs, improper parsing of the URL can lead to additional headers being passed to thunderbird that should not be included per RFC 2368. An attacker can use this method to create a mailto URL that looks safe to users, but will actually attach files when clicked.

    Published:Aug 3, 2022
    Last Modified:Apr 29, 2025
    EPS:Nov 18, 2022
    EPSS Score:0.00029
    CVSS Score:7.4

    Affected Products

    Vendor
    Freedesktop
    Product
    Xdg-utils
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    https://gitlab.freedesktop.org/xdg/xdg-utils/-/issues/205#note_1494267https://gitlab.freedesktop.org/xdg/xdg-utils/-/issues/205#note_1494267

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-15 Command Delimiters
    CAPEC-6 Argument Injection

    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