CVE-2023-5331

    Dashboard / Vulnerabilities / CVE-2023-5331

    CVE-2023-5331

    Published: 9 Oct 2023Last Modified: 25 Sept 2026

    Summary: File Information Leak via IDOR in file_id in Draft Posts

    Details: Mattermost fails to properly check the creator of an attached file when adding the file to a draft post, potentially exposing unauthorized file information.

    References: https://mattermost.com/security-updates, https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5331.json, https://nvd.nist.gov/vuln/detail/CVE-2023-5331

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -58a74d76295680a5bb684f795e21970ab53fee1d

    Affected versions

    v8.1.2-rc1
    v8.1.1-rc2
    v8.1.1
    v8.1.1-rc1
    v8.1.0-rc2
    v8.1.0

    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-2023-5331 | CVE-DB