CVE-2023-2788

    Dashboard / Vulnerabilities / CVE-2023-2788

    CVE-2023-2788

    Published: 16 Jun 2023Last Modified: 12 Aug 2026

    Summary: Deactivated user can retain access using oauth2 api

    Details: Mattermost fails to check if an admin user account active after an oauth2 flow is started, allowing an attacker with admin privileges to retain persistent access to Mattermost by obtaining an oauth2 access token while the attacker's account is deactivated.

    References: https://mattermost.com/security-updates/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/2xxx/CVE-2023-2788.json, https://nvd.nist.gov/vuln/detail/CVE-2023-2788

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 25e8c1fcddb1154de49480eb5cd7eb085507d138
    Fixed -None

    Affected versions

    7.10.0

    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
    CVE-2023-2788 | CVE-DB