Auth bypass in Masteriyo Lms

CVE-2026-82848

The Masteriyo LMS WordPress plugin before 3.4.0 does not perform any authorization check before returning a course enrolment record over its REST API, allowing unauthenticated users to read any learner's enrolment status, timestamps and course-progress data by walking sequential record identifiers. A related gap lets any enrolled user retrieve other learners' enrolment records as well.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (24.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-82848: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Masteriyo Lms

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-82848?
CVE-2026-82848 is a medium-severity vulnerability in Masteriyo Lms, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-09-09.
How severe is CVE-2026-82848?
Medium severity. CVSS v3 base score is 5.3 out of 10.