BIT-mastodon-2023-42450

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    BIT-mastodon-2023-42450

    Published: 6 Mar 2024Last Modified: 15 Oct 2025

    Summary: Mastodon Server-Side Request Forgery vulnerability

    Details: Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 4.2.0-beta1 and prior to version 4.2.0-rc2, by crafting specific input, attackers can inject arbitrary data into HTTP requests issued by Mastodon. This can be used to perform confused deputy attacks if the server configuration includes `ALLOWED_PRIVATE_ADDRESSES` to allow access to local exploitable services. Version 4.2.0-rc2 has a patch for the issue.

    References: https://github.com/mastodon/mastodon/commit/94893cf24fc95b32cc7a756262acbe008c20a9d2, https://github.com/mastodon/mastodon/security/advisories/GHSA-hcqf-fw2r-52g4, https://nvd.nist.gov/vuln/detail/CVE-2023-42450

    Affected packages

    Package

    Name: mastodon

    Purl: pkg:bitnami/mastodon

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 4.2.0-beta1
    Fixed -4.2.0

    Affected versions

    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
    BIT-mastodon-2023-42450 | CVE-DB