CVE-2024-43239Network attack vector

Restricted course review access via unchecked course_id

Published Aug 18, 2024 · Updated Apr 28, 2026

IDOR in Masteriyo LMS 1.11.4 and earlier allows remote authenticated users to review courses outside their authorized access. The course-reviews request accepts a user-controlled course_id without verifying that the requesting student may access the referenced course. Student-level access is required, and the disclosed capability is limited to reviewing otherwise restricted courses.

CVSS severity4.3
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

IDOR in Masteriyo LMS 1.11.4 and earlier allows remote authenticated users to review courses outside their authorized access. The course-reviews request accepts a user-controlled course_id without verifying that the requesting student may access the referenced course. Student-level access is required, and the disclosed capability is limited to reviewing otherwise restricted courses.

The record

CVE
CVE-2024-43239
Published
Aug 18, 2024
Updated
Apr 28, 2026
Vendor
Query Solutions Ltd.
Product
Masteriyo LMS
Classifications
CWE-639, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=1.11.4 changes=[{"at":"1.11.5","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Query Solutions Ltd. · Masteriyo LMSversion=0 <=1.11.4 changes=[{"at":"1.11.5","status":"unaffected"}]

Published CVSS scores

8.1NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
4.3PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo