GHSA-876j-jfqf-m7j7

    Dashboard / Vulnerabilities / GHSA-876j-jfqf-m7j7

    GHSA-876j-jfqf-m7j7

    Published: 24 May 2022Last Modified: 9 Dec 2025

    Summary: Mattermost Server exposes OAuth personal access tokens to attackers

    Details: An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to gain privileges by using a registered OAuth application with personal access tokens.

    References: https://nvd.nist.gov/vuln/detail/CVE-2017-18884, https://mattermost.com/security-updates

    Affected packages

    Package

    Name: github.com/mattermost/mattermost-server

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

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -4.1.2

    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-876j-jfqf-m7j7 | CVE-DB