CVE-2022-30999

    Dashboard / Vulnerabilities / CVE-2022-30999

    CVE-2022-30999

    Published: 25 May 2022Last Modified: 12 Aug 2026

    Summary: Possible cross-site scripting attack via unsanitized SVG files in FoF Upload

    Details: 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.

    References: https://github.com/FriendsOfFlarum/upload/releases/tag/1.2.3, https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/30xxx/CVE-2022-30999.json, https://github.com/FriendsOfFlarum/upload/security/advisories/GHSA-fm53-mpmp-7qw2, https://nvd.nist.gov/vuln/detail/CVE-2022-30999, https://github.com/FriendsOfFlarum/upload/issues/68, https://github.com/FriendsOfFlarum/upload/pull/318

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -d1f0e4bae11ce12f4d1f6482b380e48f345a8dd3

    Affected versions

    1.2.2
    1.2.1
    1.2.0

    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
    CVE-2022-30999 | CVE-DB