5.3

CVE-2026-28145: stylemixthemes masterstudy_lms

CVSS: 5.3v3.1MediumDeferred
Published 31-07-2026Last modified 31-07-2026
Open JSON

Vulnerability summary

CVE-2026-28145 is a medium (CVSS 5.3) vulnerability in stylemixthemes masterstudy_lms. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.4% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.16%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 31-07-2026
    PublishedVulnerability first disclosed.
  2. 31-07-2026
    Last modifiedVulnerability information updated.

Description

Insufficient Verification of Data Authenticity vulnerability in StylemixThemes MasterStudy LMS allows Manipulating User State. This issue affects MasterStudy LMS: from n/a through 3.7.39.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

+0.05 pp

From 0.11% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.16%

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

Stylemixthemes1 product
Wordpress1 product
  • masterstudy-lms-learning-management-system≤ 3.7.39 (fixed in 3.7.40)

2 vendors · 2 products

References

2 links