CVE-2025-59575

MasterStudy LMS <= 3.6.20 - Authenticated (Instructor+) Sensitive Information Exposure

2025-10-16 00:00

Strategic Overview

Status: Patched in 3.6.21
Affected Plugin: MasterStudy LMS WordPress Plugin – for Online Courses and Education
Affected Version: <= 3.6.20
CVSS: 4.3Medium
Weakness type: CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE: CVE-2025-59575

View all MasterStudy LMS WordPress Plugin – for Online Courses and Education vulnerabilities

At a glance

CVE-2025-59575 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the MasterStudy LMS WordPress Plugin WordPress plugin, affecting versions <= 3.6.20. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Instructor level or above. The issue is fixed in version 3.6.21; sites on affected versions should update now. Disclosed October 2025, reported by Bibek Dhakal.

Vulnerability Overview

The MasterStudy LMS WordPress Plugin – for Online Courses and Education plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.6.20. This makes it possible for authenticated attackers, with Custom-level access and above, to extract sensitive user or configuration data.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in MasterStudy LMS WordPress Plugin <= 3.6.20 takes an account at Instructor level or above. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For MasterStudy LMS WordPress Plugin the fix is 3.6.21: builds <= 3.6.20 are affected, anything from 3.6.21 onward is not.

Remediation

Update to version 3.6.21, or a newer patched version

How does WordSec protect against this?

The fix is the thing that ends this: MasterStudy LMS WordPress Plugin 3.6.21 closes this, and updating the plugin is the step that ends it.

Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-59575 https://www.wordfence.com/threat-intel/vulnerabilities/id/37331768-c838-44e0-a22d-4bf4141dd820 https://nvd.nist.gov/vuln/detail/CVE-2025-59575

Related records

Same weakness class

Other vulnerabilities in MasterStudy LMS WordPress Plugin – for Online Courses and Education

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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