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    CVE-2026-81340

    The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform per-object ownership or capability checks when updating orders through its REST API, allowing users with the Instructor role to modify any order on the site, granting free course enrolment, revoking other users' paid enrolments, and tampering with order notes.

    Published:Sep 18, 2026
    Last Modified:Sep 29, 2026
    EPS:Sep 18, 2026
    EPSS Score:0.00318
    CVSS Score:3.8

    Affected Products

    Vendor
    Stylemix
    Product
    Masterstudy Lms Wordpress Plugin
    Vendor
    Wordpress-extensions
    Product
    Masterstudy Lms

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-88844 (CVSS 2.7) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not verify that the requesting user …
    CVE-2026-81199 (CVSS 5.3) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not perform an authorization check b…
    CVE-2026-81198 (CVSS 3.8) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of a c…
    CVE-2026-81197 (CVSS 5.3) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not restrict access to a REST route …
    CVE-2026-81196 (CVSS 2.7) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of qui…
    CVE-2026-81195 (CVSS 5.3) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not perform an authorization check b…
    CVE-2026-81194 (CVSS 4.3) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify authorization wh…
    CVE-2026-81342 (CVSS 4.7) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.43 does not validate a redirect parameter su…
    CVE-2026-81200 (CVSS 2.7) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.42 does not correctly restrict access to ord…
    CVE-2026-81026 (CVSS 4.8) — The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.40 does not verify the amount, receiver, cur…

    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