GHSA-h3qg-w9j5-wh3m

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    GHSA-h3qg-w9j5-wh3m

    Published: 24 May 2022Last Modified: 5 Nov 2025

    Summary: Mattermost Server is vulnerable to XSS through lack of link relationship attributes `noreferrer` and `noopener`

    Details: An issue was discovered in Mattermost Server before 3.1.0. It allows XSS because the noreferrer and noopener protection mechanisms were not in place.

    References: https://nvd.nist.gov/vuln/detail/CVE-2016-11071, https://github.com/mattermost/mattermost, 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 -3.1.0

    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-h3qg-w9j5-wh3m | CVE-DB