What is CVE-2026-40766?

CVE-2026-40766 is a high-severity vulnerability in Stylemixthemes Masterstudy Lms, classified under SQL Injection. CVSS score: 8.5/10. Published 2026-06-15.

How severe is CVE-2026-40766?

High severity. CVSS v3 base score is 8.5 out of 10.

SQL Injection in Stylemixthemes Masterstudy Lms

CVE-2026-40766

Subscriber SQL Injection in MasterStudy LMS <= 3.7.25 versions.

Vulnerability class: SQL Injection

Published 2026-06-15 · last modified 2026-10-25.

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L.

EPSS exploit prediction

EPSS: 0.003 (26.5th percentile), scored 2026-11-04.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.003 · change: -0.000

Affected products

Stylemixthemes Masterstudy Lms

Weakness classification (CWE)

CWE-89 — SQL Injection

References

patchstack.com/database/wordpress/plugin/masterstudy-lms-learning-management-sy… (vdb-entry)

Frequently asked questions

What is CVE-2026-40766?: CVE-2026-40766 is a high-severity vulnerability in Stylemixthemes Masterstudy Lms, classified under SQL Injection. CVSS score: 8.5/10. Published 2026-06-15.
How severe is CVE-2026-40766?: High severity. CVSS v3 base score is 8.5 out of 10.