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    CVE-2021-42042

    An issue was discovered in SpecialEditGrowthConfig in the GrowthExperiments extension in MediaWiki through 1.36.2. The growthexperiments-edit-config-error-invalid-title MediaWiki message was not being properly sanitized and allowed for the injection and execution of HTML and JavaScript.

    Published:Oct 6, 2021
    Last Modified:Nov 21, 2024
    EPS:Oct 6, 2021
    EPSS Score:0.00646
    CVSS Score:4.8

    Affected Products

    Vendor
    Mediawiki
    Product
    Mediawiki

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-34094 (CVSS 2) — Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files include…
    CVE-2026-34093 (CVSS 1.1) — Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. …
    CVE-2026-34092 (CVSS 2.1) — Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. …
    CVE-2026-34091 (CVSS 5.5) — Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. T…
    CVE-2026-34088 (CVSS 1.3) — Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. T…
    CVE-2026-34087 (CVSS 5.1) — Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation OATHAuth. Th…
    CVE-2025-67481 (CVSS 0) — Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in W…
    CVE-2025-67483 (CVSS 0) — Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in W…
    CVE-2025-67484 (CVSS 0) — Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/…

    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