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    CVE-2021-22242

    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

    Published:Aug 25, 2021
    Last Modified:Nov 21, 2024
    EPS:Aug 25, 2021
    EPSS Score:0.02527
    CVSS Score:8.7

    Affected Products

    Vendor
    Gitlab
    Product
    Gitlab

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-75871 (CVSS 8.2) — GitLab has remediated a vulnerability in the GitLab AI Gateway component affecting all versions of the AI Gate…
    CVE-2025-10903 (CVSS 6.5) — GitLab has remediated an issue in GitLab EE affecting all versions from 11.10 before 19.1.7, 19.2 before 19.2.…
    CVE-2026-3035 (CVSS 5.5) — GitLab has remediated an issue in GitLab EE affecting all versions from 11.3 before 19.1.7, 19.2 before 19.2.5…
    CVE-2026-7487 (CVSS 3.5) — GitLab has remediated an issue in GitLab EE affecting all versions from 13.1 before 19.1.7, 19.2 before 19.2.5…
    CVE-2026-15387 (CVSS 4.3) — GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.7, 19.2 before 19.2.5…
    CVE-2026-18252 (CVSS 7.3) — GitLab has remediated an issue in GitLab EE affecting all versions from 18.9 before 19.1.7, 19.2 before 19.2.5…
    CVE-2026-77801 (CVSS 6.5) — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 12.8 before 19.1.7, 19.2 before 19.…
    CVE-2026-10053 (CVSS 8.5) — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.8 before 19.0.6, 19.1 before 19.…
    CVE-2026-19650 (CVSS 7.1) — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 1…
    CVE-2026-19478 (CVSS 9.4) — GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.11.11, 19.0 before 1…

    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