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    CVE-2026-81338

    The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not properly sanitise and restrict HTML in user-submitted content before storing it and rendering it to other users, allowing users with subscriber-level accounts and above to perform stored HTML injection, such as embedding iframes, that can be leveraged for phishing and content spoofing against other users viewing the content.

    Published:Sep 23, 2026
    Last Modified:Sep 28, 2026
    EPS:Sep 23, 2026
    EPSS Score:0.00093
    CVSS Score:4.6

    Affected Products

    Vendor
    Wordpress-extensions
    Product
    Masterstudy Lms

    Exploits

    No exploit reference

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    CVE-2026-88845 (CVSS 4.3) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform any capability or nonce …
    CVE-2026-88843 (CVSS 7.2) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not validate one of its display-styl…
    CVE-2026-81339 (CVSS 4.3) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform a per-object ownership c…
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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