Description
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform a per-object ownership check when returning a quiz attempt result, allowing any authenticated user with a minimal (subscriber) role to read other students' quiz grades, pass/fail status and attempt timestamps by referencing an attempt identifier belonging to another user.
Published: 2026-09-23
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 23 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.50 does not perform a per-object ownership check when returning a quiz attempt result, allowing any authenticated user with a minimal (subscriber) role to read other students' quiz grades, pass/fail status and attempt timestamps by referencing an attempt identifier belonging to another user.
Title MasterStudy LMS < 3.7.50 - Subscriber+ Quiz Attempt Grade Disclosure via IDOR
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-09-23T10:59:07.298Z

Reserved: 2026-08-26T18:07:09.452Z

Link: CVE-2026-81339

cve-icon Vulnrichment

Updated: 2026-09-23T10:37:59.961Z

cve-icon NVD

Status : Received

Published: 2026-09-23T06:17:02.263

Modified: 2026-09-23T11:17:11.880

Link: CVE-2026-81339

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-23T14:45:05Z

Weaknesses