What is CVE-2026-57640?

CVE-2026-57640 is a medium-severity vulnerability in Stylemix Masterstudy Lms, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-06-26.

How severe is CVE-2026-57640?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Stylemix Masterstudy Lms

CVE-2026-57640

Subscriber Broken Access Control in MasterStudy LMS <= 3.7.30 versions.

Vulnerability class: Broken Access Control

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Stylemix Masterstudy Lms — versions n/a

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2026-57640?: CVE-2026-57640 is a medium-severity vulnerability in Stylemix Masterstudy Lms, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-06-26.
How severe is CVE-2026-57640?: Medium severity. CVSS v3 base score is 4.3 out of 10.