CVE-2025-64209

WordPress Masterstudy theme < 4.8.122 - Broken Access Control vulnerability

7.5 High

Missing Authorization vulnerability in StylemixThemes Masterstudy masterstudy allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Masterstudy: from n/a through < 4.8.122.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.34%Up 0.3 points since Dec 18, 2025

What each source reports

CVE List Score used 7.5

WordPress Masterstudy theme < 4.8.122 - Broken Access Control vulnerability

Record: CVE-2025-64209
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862
Updated: 2026-11-02

EUVDEUVD-2025-204082 7.5

Record: EUVD-2025-204082
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-8qhj-5m76-2hx4 7.5

Missing Authorization vulnerability in StylemixThemes Masterstudy masterstudy allows Accessing...

Record: GHSA-8qhj-5m76-2hx4
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862
Updated: 2026-11-02

NVD 7.5

Record: CVE-2025-64209
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-862
Updated: 2026-11-02

Affected products

stylemixthemes masterstudy

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-64209 is a high vulnerability (CVSS 7.5) in Stylemixthemes Masterstudy, published December 18, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.34%, the 27th percentile. No source names a fixed version.