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Masteriyo CVE-2023-3345

MEDIUM
2023-07-31 contact@wpscan.com
6.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 1.9% exploitation probability (EPSS)

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AnalysisAI

The LMS by Masteriyo WordPress plugin before 1.6.8 does not have proper authorization in one some of its REST API endpoints, making it possible for any students to retrieve email addresses of other. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The LMS by Masteriyo WordPress plugin before 1.6.8 does not have proper authorization in one some of its REST API endpoints, making it possible for any students to retrieve email addresses of other students Affected products include: Themegrill Masteriyo. Version information: before 1.6.8.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

The LMS by Masteriyo WordPress plugin before 1.6.8 does not have proper authorization in one some of its REST API endpoints, making it possible for any students to retrieve email addresses of other students

Threat Intelligence Overview

EPSS Score
1.9%
Top 22% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 1.9%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

54
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +32
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:themegrill:masteriyo:*:*:*:*:*:wordpress:*:*
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9.8 May 17

Privilege escalation in the Masteriyo LMS WordPress plugin (versions up to and including 1.7.2) allows remote unauthenti

CVE-2024-33939 MEDIUM POC
5.3 May 19

Authentication Bypass Using an Alternate Path or Channel vulnerability in Masteriyo Masteriyo - LMS. Rated medium severi

CVE-2026-73996 CRITICAL
9.8 Aug 18

Unauthenticated arbitrary file upload in the Masteriyo LMS WordPress plugin (versions <= 2.3.2) lets remote attackers up

CVE-2026-4484 HIGH
8.8 Mar 26

The Masteriyo LMS plugin for WordPress contains a critical privilege escalation vulnerability that allows authenticated

CVE-2026-62107 HIGH
8.8 Sep 11

PHP Object Injection in the Masteriyo LMS WordPress plugin (versions <= 3.4.0) allows remote attackers to inject a craft

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4.3 Sep 24

Masteriyo LMS, a WordPress learning-management plugin, discloses the course-progress and learning-activity records of ev

CVE-2024-43158 HIGH
7.5 Nov 01

Missing Authorization vulnerability in masteriyo Masteriyo - LMS learning-management-system.11.4. Rated high severity (C

CVE-2026-59513 MEDIUM
6.5 Jul 23

Stored Cross-Site Scripting in Masteriyo LMS WordPress plugin versions up to and including 2.3.0 allows authenticated su

CVE-2026-116410 MEDIUM
6.5 Oct 30

Unauthenticated arbitrary content deletion in Masteriyo LMS 3.4.3 and earlier lets remote attackers remove content from

CVE-2024-10008 MEDIUM
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The Masteriyo LMS - eLearning and Online Course Builder for WordPress plugin for WordPress is vulnerable to unauthorized

CVE-2026-65463 MEDIUM
5.4 Jul 23

Insecure Direct Object Reference in the Masteriyo LMS WordPress plugin (versions ≤ 2.3.1) allows authenticated subscribe

CVE-2024-10000 MEDIUM
5.4 Oct 29

The Masteriyo LMS - eLearning and Online Course Builder for WordPress plugin for WordPress is vulnerable to Stored Cross

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