CVE-2025-64209 HIGH

CVE-2025-64209: WordPress Masterstudy theme < 4.8.122 - Broken Access Control vulnerability

Vendor Stylemixthemes

Product Masterstudy

Weakness CWE-862 · Missing authorization

Published December 18, 2025

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

7.5/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality High

Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

Masterstudy versions up to 4.8.122 lack proper authorization checks, allowing unauthenticated attackers to read sensitive data. The vulnerability requires no user interaction and can be exploited over the network. Site administrators should update to a version newer than 4.8.122 immediately.

What an attacker can do

03Attacker Capabilities

Read sensitive data without logging in.

Potential impact on your site

04Site Impact

Confidential information may be exposed to anyone on the internet.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

December 18, 2025 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-64209 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html

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