GHSA-85jj-c9jr-9jhx

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    GHSA-85jj-c9jr-9jhx

    Published: 27 Nov 2023Last Modified: 10 Sept 2026
    Aliases:
    CVE-2023-6202

    Summary: Mattermost Improper Access Control vulnerability

    Details: Mattermost fails to perform proper authorization in the `/plugins/focalboard/api/v2/users` endpoint allowing an attacker who is a guest user and knows the ID of another user to get their information (e.g. name, surname, nickname) via Mattermost Boards.

    References: https://nvd.nist.gov/vuln/detail/CVE-2023-6202, https://github.com/mattermost/mattermost, https://mattermost.com/security-updates

    Affected packages

    Package

    Name: github.com/mattermost/mattermost/server/v8

    Purl: pkg:golang/github.com/mattermost/mattermost/server/v8

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 9.1.0
    Fixed -9.1.1

    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
    GHSA-85jj-c9jr-9jhx | CVE-DB