CVE-2021-22242

    Dashboard / Vulnerabilities / CVE-2021-22242

    CVE-2021-22242

    Published: 25 Aug 2021Last Modified: 27 Aug 2026

    Summary:

    Details: Insufficient input sanitization in Mermaid markdown in GitLab CE/EE version 11.4 and up allows an attacker to exploit a stored cross-site scripting vulnerability via a specially-crafted markdown

    References: https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-22242.json, https://gitlab.com/gitlab-org/gitlab/-/issues/332528, https://hackerone.com/reports/1212822

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- cfe266cbac3c5d413e9c061fff420630e517005f
    Fixed -cdec15d2a57e0e91df125713022bf18a9878edae

    Affected versions

    v14.0.5-ee
    v14.0.6-ee
    v14.0.3-ee
    v14.0.1-ee
    v14.0.0-ee

    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-2021-22242 | CVE-DB