CVE-2026-40743 MEDIUM

CVE-2026-40743: WordPress Tutor LMS plugin <= 3.9.7 - Broken Access Control vulnerability

Vendor Themeum

Product Tutor LMS

Weakness CWE-862 · Missing authorization

Published June 15, 2026

Last update June 16, 2026

View on NVD All CVEs

CVSS base score

6.5/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Unauthenticated Broken Access Control in Tutor LMS <= 3.9.7 versions.

Explanation of Vulnerability in Simple Terms

02Summary

Tutor LMS versions up to 3.9.7 lack proper authorization checks, allowing unauthenticated attackers to read and modify certain data without permission. The vulnerability requires no user interaction and can be exploited over the network. Site administrators should update to a version newer than 3.9.7 to prevent unauthorized access to sensitive information.

What an attacker can do

03Attacker Capabilities

Read and modify data without logging in or having permission to do so.

Potential impact on your site

04Site Impact

Unauthorized users can access and alter course data, student records, or other sensitive information stored in Tutor LMS.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

June 15, 2026 CVE published

June 16, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-40743 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html AskarLabs — CWE-862 write-up Missing Authorization

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