CVE-2026-40740 MEDIUM

CVE-2026-40740: WordPress Tutor LMS plugin <= 3.9.7 - Broken Access Control vulnerability

Vendor Themeum

Product Tutor LMS

Weakness CWE-862 · Missing authorization

Published April 15, 2026

Last update April 29, 2026

View on NVD All CVEs

CVSS base score

5.4/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality None

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Missing Authorization vulnerability in Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.7.

Explanation of Vulnerability in Simple Terms

02Summary

Tutor LMS versions up to 3.9.7 lack proper authorization checks, allowing authenticated users to modify or delete content they should not have access to. An attacker with a low-privilege account can alter course data or disable features affecting site integrity. Update to a version newer than 3.9.7 to resolve this issue.

What an attacker can do

03Attacker Capabilities

Modify or delete course content and settings without proper authorization.

Potential impact on your site

04Site Impact

Course instructors or students could have their content altered or deleted by other low-privilege users.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site.

Key dates

06Disclosure timeline

April 15, 2026 CVE published

April 29, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-40740 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/862.html AskarLabs — CWE-862 write-up Missing Authorization

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