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    CVE-2022-30999

    FriendsofFlarum (FoF) Upload is an extension that handles file uploads intelligently for your forum. If FoF Upload prior to version 1.2.3 is configured to allow the uploading of SVG files ('image/svg+xml'), navigating directly to an SVG file URI could execute arbitrary Javascript code decided by an attacker. This Javascript code could include the execution of HTTP web requests to Flarum, or any other web service. This could allow data to be leaked by an authenticated Flarum user, or, possibly, for data to be modified maliciously. This issue has been patched with v1.2.3, which now sanitizes uploaded SVG files. As a workaround, remove the ability for users to upload SVG files through FoF Upload.

    Published:May 25, 2022
    Last Modified:Apr 22, 2025
    EPS:May 25, 2022
    EPSS Score:0.00511
    CVSS Score:8.7

    Affected Products

    Vendor
    Friendsofflarum
    Product
    Upload

    Exploits

    https://github.com/FriendsOfFlarum/upload/issues/68https://github.com/FriendsOfFlarum/upload/issues/68

    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