BIT-mastodon-2023-36462

    Dashboard / Vulnerabilities / BIT-mastodon-2023-36462

    BIT-mastodon-2023-36462

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary: Mastodon's verified profile links can be formatted in a misleading way

    Details: Mastodon is a free, open-source social network server based on ActivityPub. Starting in version 2.6.0 and prior to versions 3.5.9, 4.0.5, and 4.1.3, an attacker can craft a verified profile link using specific formatting to conceal arbitrary parts of the link, enabling it to appear to link to a different URL altogether. The link is visually misleading, but clicking on it will reveal the actual link. This can still be used for phishing, though, similar to IDN homograph attacks. Versions 3.5.9, 4.0.5, and 4.1.3 contain a patch for this issue.

    References: https://github.com/mastodon/mastodon/commit/610731b03dfcadd887078cb0399f4e514aa1931c, https://github.com/mastodon/mastodon/releases/tag/v3.5.9, https://github.com/mastodon/mastodon/releases/tag/v4.0.5, https://github.com/mastodon/mastodon/releases/tag/v4.1.3, https://github.com/mastodon/mastodon/security/advisories/GHSA-55j9-c3mp-6fcq, https://nvd.nist.gov/vuln/detail/CVE-2023-36462

    Affected packages

    Package

    Name: mastodon

    Purl: pkg:bitnami/mastodon

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 2.6.0
    Fixed -3.5.9

    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-2023-36462 | CVE-DB