Information disclosure in Masterstudy Lms WordPress Plugin

CVE-2026-81197

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.46 does not restrict access to a REST route that lists an author's courses, nor does it filter that listing by publication status, allowing unauthenticated users to read the titles and IDs of unpublished (draft, pending and private) courses.

Vulnerability class: Information Disclosure

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 (26.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.4% 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-2026-81197: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • Masterstudy Lms WordPress Plugin

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-81197?
CVE-2026-81197 is a medium-severity vulnerability in Masterstudy Lms WordPress Plugin, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-09-02.
How severe is CVE-2026-81197?
Medium severity. CVSS v3 base score is 5.3 out of 10.