CVE-2026-81340 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00142.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://wpscan.com/vulnerability/8006876f-27bb-483d-b4e4-9fa4414d16f0/

History

Fri, 18 Sep 2026 12:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-639
Metrics		cvssV3_1 `{'score': 3.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:L'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Fri, 18 Sep 2026 06:15:00 +0000

Type	Values Removed	Values Added
Description		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.
Title		MasterStudy LMS < 3.7.50 - Instructor+ Order Status Manipulation via IDOR
References		https://wpscan.com/vulnerability/8006876f-27bb-483d-b4e4-9fa4414d16f0/

Projects

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MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2026-09-18T06:00:11.903Z

Updated: 2026-09-18T11:13:38.917Z

Reserved: 2026-08-26T18:07:36.343Z

Link: CVE-2026-81340

Vulnrichment

Updated: 2026-09-18T11:09:16.917Z

NVD

Status : Received

Published: 2026-09-18T06:16:39.073

Modified: 2026-09-18T12:17:25.430

Link: CVE-2026-81340

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-639

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