What is CVE-2026-4484?

CVE-2026-4484 is a high-severity vulnerability in Masteriyo Lms – Online Course Builder For Elearning, & Education, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-03-26.

How severe is CVE-2026-4484?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2026-4484 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Masteriyo Lms – Online Course Builder For Elearning, & Education

CVE-2026-4484

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_…

Vulnerability class: Broken Access Control

EPSS: 0.000 (5.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Masteriyo Lms – Online Course Builder For Elearning, & Education — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

Public proof-of-concept exploits

Nxploited/CVE-2026-4484

References

Frequently asked questions

What is CVE-2026-4484?: CVE-2026-4484 is a high-severity vulnerability in Masteriyo Lms – Online Course Builder For Elearning, & Education, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-03-26.
How severe is CVE-2026-4484?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2026-4484 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.