CVE intelligence and bounded remediation
CVE-2024-3942 — Stylemixthemes Masterstudy Lms security vulnerability
The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to unauthorized access, modification, and loss of data due to a missing capability check on several functions in versions up to, and including, 3.3.8. This makes it possible for authenticated attackers, with subscriber level permissions and above, to read and modify content such as course questions, post titles, and taxonomies.
- Severity
- Medium
- CVSS
- 6.3 (3.1)
- Published
- 2024-05-02
- CISA KEV
- Not currently listed
- Ecosystem
- php/wordpress
- Weaknesses
- CWE-862
Affected products
- stylemixthemes / masterstudy_lms
Matched remediation archetype
Authorization bypass, IDOR, and cross-tenant access
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Map object and action authorization checks across API, UI, batch, import/export, and background-job paths.
- Identify tenant, ownership, role, and policy boundaries for affected resources and administrative operations.
- Use synthetic fixtures to compare intended access matrices without accessing another user's real data.
Remediate safely
- Enforce server-side authorization at each resource access and state transition using the authenticated principal and trusted tenant context.
- Scope data queries by tenant and ownership; treat client-supplied identifiers, roles, and policy claims as untrusted.
- Add deny-by-default policy tests for horizontal and vertical access across every affected transport.
Authoritative sources
Complete CVE record and remediation plan
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