6.5

CVE-2025-59576: stylemix masterstudy lms Missing Authorization

CVSS: 6.5v3.1MediumDeferred
Published 22-09-2025Last modified 28-04-2026
Open JSON

Vulnerability summary

CVE-2025-59576 is a medium (CVSS 6.5) Missing Authorization vulnerability in stylemix masterstudy lms. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 12.5% of scored vulnerabilities. Fixed in 3.6.21.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 22-09-2025
    PublishedVulnerability first disclosed.
  2. 28-04-2026
    Last modifiedVulnerability information updated.

Description

Missing Authorization vulnerability in Stylemix MasterStudy LMS masterstudy-lms-learning-management-system allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects MasterStudy LMS: from n/a through <= 3.6.20.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

0.00 pp

From 0.22% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.23%

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

Stylemix1 product
Wordpress1 product
  • masterstudy-lms-learning-management-system≤ 3.6.20 (fixed in 3.6.21)

2 vendors · 2 products

References

2 links