Paid Memberships Pro - Courses for Membership Add On <= 1.2.3 - Missing Authorization to Authenticated (Subscriber+) Course Modifications
Strategic Overview
- Status
- Patched in 1.2.4
- Affected Plugin
- Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS
- Affected Version
< 1.2.4- CVSS
- 4.3Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2023-39990
At a glance
CVE-2023-39990 is a medium-severity Missing Authorization vulnerability in the Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS WordPress plugin, affecting versions < 1.2.4. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 1.2.4; sites on affected versions should update now. Disclosed August 2023, reported by Rafie Muhammad.
Vulnerability Overview
The Paid Memberships Pro - Courses for Membership Add On plugin for WordPress is vulnerable to unauthorized modification of data due to missing capability checks on the pmpro_courses_update_course_callback() and pmpro_courses_remove_course_callback() functions called via AJAX actions in versions up to, and including, 1.2.3. This makes it possible for authenticated attackers, with minimal permissions such as a subscriber, to update and remove courses from the course page.
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 interaction from a victim user.
CWE-862: Missing Authorization
Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS < 1.2.4 carries this weakness at pmpro_courses_update_course_callback(), and reaching it takes an account at Subscriber level or above. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS the fix is 1.2.4: builds < 1.2.4 are affected, anything from 1.2.4 onward is not.
Remediation
Update to version 1.2.4, 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: Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS 1.2.4 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C