CVE-2025-64215
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedMissing Authorization vulnerability in StylemixThemes MasterStudy LMS Pro allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects MasterStudy LMS Pro: from n/a before 4.7.16.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceMissing authorization vulnerability in the MasterStudy LMS Pro WordPress plugin allows authenticated users to access functionality that is not properly constrained by access control lists. This is likely a broken access control (BAC) issue where privilege checks are missing on certain functions or AJAX endpoints, potentially allowing lower-privileged users to perform administrative or instructor-level actions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Confirm MasterStudy LMS Pro is installedCheck the WordPress plugins directory or use WP-CLI: wp plugin list --name='masterstudy-lms-learning-management-system-pro'Affected if The plugin is present on the WordPress site
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Identify the installed plugin versionCheck the plugin header in /wp-content/plugins/masterstudy-lms-learning-management-system-pro/masterstudy.php or use: wp plugin get masterstudy-lms-learning-management-system-pro --field=versionAffected if Version is below 4.7.16 (the fixed release)
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Verify lower-privileged user accounts existList user roles on the site using: wp user list --role=subscriber OR wp user list --role=student OR check Users > All Users in WordPress admin for non-administrator rolesAffected if Any user roles below administrator or instructor exist on the site
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Test for accessible AJAX endpointsIf authenticated as a lower-privileged user (subscriber/student), attempt to access common plugin AJAX actions by inspecting plugin JavaScript files for wp_ajax_ hooks or checking if non-admin users can trigger instructor-level actionsAffected if Lower-privileged users can access endpoints that should require instructor or administrator privileges
The environment is affected if MasterStudy LMS Pro version is below 4.7.16 and the site contains user accounts with roles below administrator or instructor.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpdate MasterStudy LMS Pro to version 4.7.16 or later to receive the vendor patch that adds proper authorization checks. If immediate update is not possible, disable the plugin until patched.
4.7.16
- 1. Identify the currently installed version of the MasterStudy LMS Pro plugin in WordPress
- 2. Create a complete backup of the WordPress site (database and files) before proceeding with any updates
- 3. Update MasterStudy LMS Pro to version 4.7.16 or later through the WordPress plugin admin interface or via FTP
- 4. Confirm the update was successful by verifying the installed version number
- 5. Test critical LMS functionality including course creation, user enrollment, and admin access controls to verify the authorization fix is working
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,200.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-64215 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-64215 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data