Masteriyo LMS – Online Course Builder for eLearning, LMS & Education: Privilege escalation or authentication bypass

Masteriyo LMS – Online Course Builder for eLearning, LMS & Education is affected by privilege escalation or authentication bypass. Exploitation requires an authenticated WordPress account. A successful request can grant permissions or access that the caller should not possess. The published affected range is <= 2.1.6.

CVE / CNA score 8.8 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: Masteriyo LMS – Online Course Builder for eLearning, LMS & Education
Plugin slug: learning-management-system
Affected: <= 2.1.6
Safe version: See mitigation notes
Published: Mar 26, 2026
Weakness: CWE-862 — Missing Authorization

This CVE was published Mar 26, 2026 and is one of 19 known issues for this plugin.

What to do

Update, patch or deactivate.

No fixed release is identified. Update Masteriyo LMS – Online Course Builder for eLearning, LMS & Education when a release after 2.1.6 becomes available; until then, disable and remove it when the site's risk warrants. The official upstream changelog lists version 2.3.3, which is newer than the published affected range. Its changelog does not clearly confirm this specific fix, so it is not counted as a known-safe release.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Masteriyo LMS plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 2.1.6. This is due to the plugin allowing a user to update the user role through the 'InstructorsController::prepare_object_for_database' function. This makes it possible for authenticated attackers, with Student-level access and above, to elevate their privileges to that of an administrator.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Primary and upstream sources

Data attribution: This product uses the NVD API but is not endorsed or certified by the NVD.

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