CVE-2026-40740
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 Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.7.
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 Themeum Tutor LMS plugin allows exploiting incorrectly configured access control security levels, potentially enabling unauthorized users to access functionality or data they should not have permission to reach.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/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 Tutor LMS plugin installationLocate the Themeum Tutor LMS plugin in your WordPress installation (typically in wp-content/plugins/tutor or via WordPress admin > Plugins). Verify the plugin is active.Affected if Plugin is installed and active
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Identify installed plugin versionCheck the plugin version number in WordPress admin > Plugins > Tutor LMS, or inspect the main plugin file (usually tutor.php or index.php in the plugin directory) for the 'Version' header comment.Affected if Version number matches or falls within the affected version range (compare against official Themeum Tutor LMS release notes for this CVE)
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Verify public-facing Tutor endpointsAccess common Tutor LMS URLs without authentication (e.g., /tutor/student-dashboard/, /tutor/instructor-dashboard/, /tutor-profile/, /wp-json/tutor/v1/ endpoints). Check if content or functionality is accessible without login.Affected if Sensitive pages or data are accessible to unauthenticated or unauthorized users
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Test role-based access controlCreate or use a low-privilege user account (e.g., subscriber role) and attempt to access administrative or instructor-level Tutor LMS functions (course creation, student management, grade editing, settings pages).Affected if Lower-privileged users can access functions restricted to instructors or administrators
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Inspect capability configurationExamine the tutor_roles capability settings in WordPress admin > Tutor LMS > Settings > Role Manager. Verify that each role (Student, Instructor, Administrator) has appropriate and restrictive capability assignments.Affected if Roles have overly permissive capabilities or missing authorization checks
You are affected if Tutor LMS plugin is installed and the version is within the affected range, AND sensitive functionality is accessible to users lacking proper authorization.
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.
From vendor dataImplement proper role-based access control (RBAC) checks and authorization validation on all sensitive functions and endpoints within the Tutor LMS plugin.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 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 $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-40740 — 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-2026-40740 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