EUVD-2026-69849
GHSA-7j6v-48vm-cmrx
Severity by source
AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Instructor-level authentication required (PR:H); exposed via network plugin API; confidentiality limited to quiz content only (C:L); no integrity or availability impact.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
6DescriptionCVE.org
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not properly verify ownership of quiz question identifiers, allowing users with instructor access to read other instructors' quiz questions, including the correct answers and explanations.
AnalysisAI
Instructors in MasterStudy LMS WordPress Plugin versions before 3.7.46 can read quiz questions, correct answers, and explanations belonging to other instructors by supplying arbitrary question identifiers in plugin requests. The root cause is CWE-639 (IDOR - Authorization Through User-Controlled Key): the plugin exposes question IDs without verifying that the requesting instructor owns them. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid instructor-level account on the target MasterStudy LMS WordPress installation - the CVSS PR:H metric confirms authentication is mandatory. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 2.7 with vector AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N accurately represents bounded real-world impact: exploitation is confined to instructor-level authenticated users (PR:H), and the confidentiality exposure is limited to quiz content rather than credentials, PII, or administrative data (C:L). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update the MasterStudy LMS WordPress Plugin to version 3.7.46 or later, which implements proper ownership verification for quiz question identifiers. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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