8.8

CVE-2026-4484: masteriyo masteriyo lms – online course builder for elearning, lms & education Missing Authorization

CVSS: 8.8v3.1HighDeferred
Published 26-03-2026Last modified 08-04-2026
Open JSON

Vulnerability summary

CVE-2026-4484 is a high (CVSS 8.8) Missing Authorization vulnerability in masteriyo masteriyo lms – online course builder for elearning, lms & education. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 41.9% of scored vulnerabilities. Fixed in 2.1.7.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.51%
0%100%
Low · +0.15 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 26-03-2026
    PublishedVulnerability first disclosed.
  2. 08-04-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

42%

Versus all other CVEs

30-day change

+0.15 pp

From 0.35% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.51%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Masteriyo1 product
Wordpress1 product
  • learning-management-system≤ 2.1.6 (fixed in 2.1.7)

2 vendors · 2 products

References

4 links