CVE-2024-10393

Tutor LMS <= 2.7.6 - User Registration Setting Bypass to Unauthorized User Registration

2024-11-20 00:00
1337_Wannabe

Strategic Overview

Status
Patched in 2.7.7
Affected Plugin
Tutor LMS – eLearning and online course solution
Affected Version
<= 2.7.6
CVSS
5.3Medium
Weakness type
CWE-284 · Improper Access Control
CVE
CVE-2024-10393
View all Tutor LMS – eLearning and online course solution vulnerabilities

At a glance

CVE-2024-10393 is a medium-severity Improper Access Control vulnerability in the Tutor LMS WordPress plugin, affecting versions <= 2.7.6. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.7.7; sites on affected versions should update now. Disclosed November 2024, reported by 1337_Wannabe.

Vulnerability Overview

The Tutor LMS plugin for WordPress is vulnerable to bypass to user registration in versions up to, and including, 2.7.6. This is due to a missing check for the 'users_can_register' option in the 'register_instructor' function. This makes it possible for unauthenticated attackers to register as the default role on the site, even if registration is disabled.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-284: Improper Access Control

Tutor LMS <= 2.7.6 carries this weakness at users_can_register, and reaching it takes a caller who can reach the endpoint. Improper access control means the code decides what a caller may do using something other than their actual permissions, so the decision can be wrong without any check appearing to be missing.

Whoever can shape the request decides the answer, so the protected action runs for callers the code never meant to allow. For Tutor LMS the fix is 2.7.7: builds <= 2.7.6 are affected, anything from 2.7.7 onward is not.

Remediation

Update to version 2.7.7, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Tutor LMS 2.7.7 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2024-10393https://www.wordfence.com/threat-intel/vulnerabilities/id/bf8aa169-df51-46db-8c65-f1543d4f75f9https://nvd.nist.gov/vuln/detail/CVE-2024-10393

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C