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    CVE-2026-19712

    The Masteriyo LMS WordPress plugin before 2.3.3 does not sanitise and escape a quiz field before outputting it back in a page, and grants its instructor role the ability to store unfiltered HTML, allowing such users to perform Stored Cross-Site Scripting attacks against any visitor of the affected page, including administrators. This affects default single-site installations. Sites running multisite, or defining DISALLOW_UNFILTERED_HTML, are not affected as the capability is not granted there.

    Published:Aug 16, 2026
    Last Modified:Aug 17, 2026
    EPS:Aug 16, 2026
    EPSS Score:0.00164
    CVSS Score:6.1

    Affected Products

    Vendor
    Masteriyo
    Product
    Masteriyo
    Vendor
    Wordpress
    Product
    Wordpress

    Exploits

    No exploit reference

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    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