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    CVE-2023-3550

    Mediawiki v1.40.0 does not validate namespaces used in XML files. Therefore, if the instance administrator allows XML file uploads, a remote attacker with a low-privileged user account can use this exploit to become an administrator by sending a malicious link to the instance administrator.

    Published:Sep 25, 2023
    Last Modified:Feb 13, 2025
    EPS:Sep 25, 2023
    EPSS Score:0.00107
    CVSS Score:7.3

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Mediawiki
    Product
    Mediawiki

    Exploits

    https://fluidattacks.com/advisories/blondie/https://fluidattacks.com/advisories/blondie/

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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