GHSA-9w97-9rqx-8v4j

    Dashboard / Vulnerabilities / GHSA-9w97-9rqx-8v4j

    GHSA-9w97-9rqx-8v4j

    Published: 2 Jan 2024Last Modified: 10 Sept 2026

    Summary: Mattermost allows demoted guests to change group names

    Details: Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names.

    References: https://nvd.nist.gov/vuln/detail/CVE-2023-50333, https://github.com/mattermost/mattermost/commit/61dd452fb2fcd3ac6f7b2e050f7f0a93a92d95fc, 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- 0
    Fixed -8.1.7

    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