CVE-2026-65463
Received Received - Intake

Subscriber IDOR in Masteriyo LMS <= 2.3.1

Vulnerability report for CVE-2026-65463, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-07-23

Last updated on: 2026-07-23

Assigner: Patchstack

Description

Subscriber Insecure Direct Object References (IDOR) in Masteriyo - LMS <= 2.3.1 versions.

CVSS Scores

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Meta Information

Published
2026-07-23
Last Modified
2026-07-23
Generated
2026-07-23
AI Q&A
2026-07-23
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
masteriyo lms to 2.3.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

This vulnerability is a Subscriber Insecure Direct Object References (IDOR) issue found in Masteriyo - LMS versions 2.3.1 and below. IDOR occurs when an application exposes direct references to internal objects, allowing unauthorized users to access or manipulate data by changing these references.

Impact Analysis

An attacker with subscriber-level access could exploit this to read or modify sensitive data, such as user information or course content, by manipulating object references. This could lead to unauthorized data exposure or alteration without needing higher privileges.

Compliance Impact

This vulnerability may violate compliance requirements like GDPR or HIPAA by allowing unauthorized access to personal or sensitive data. GDPR requires protecting personal data, while HIPAA mandates safeguarding health information. Exploiting IDOR could lead to data breaches, resulting in legal penalties and reputational damage.

Mitigation Strategies

Update Masteriyo - LMS to the latest version beyond 2.3.1 to address the Subscriber IDOR vulnerability. Ensure proper access controls are enforced to prevent unauthorized object references.

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