Paid Memberships Pro - Courses for Membership Add On <= 1.2.4 - Authenticated (Admin+) Stored Cross-Site Scripting
Strategic Overview
- Status
- Patched in 1.2.5
- Affected Plugin
- Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS
- Affected Version
< 1.2.5- CVSS
- 4.4Medium
- Weakness type
- CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- CVE
CVE pending
At a glance
This record tracks a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS WordPress plugin, affecting versions < 1.2.5. It carries a CVSS score of 4.4 (reachable over the network). Exploitation requires an authenticated account at Admin level or above. The issue is fixed in version 1.2.5; sites on affected versions should update now. Disclosed August 2023.
Vulnerability Overview
The Paid Memberships Pro - Courses for Membership Add On plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pmpro_courses_modules' setting in versions up to, and including, 1.2.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled. This can also be exploited via Cross-Site Request Forgery.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, and no interaction from a victim user.
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS < 1.2.5 carries this weakness at pmpro_courses_modules, and reaching it takes an account at Admin level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.
Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS the fix is 1.2.5: builds < 1.2.5 are affected, anything from 1.2.5 onward is not.
Remediation
Update to version 1.2.5, or a newer patched version
How does WordSec protect against this?
An attacker needs Admin access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Premium Courses & eLearning with Paid Memberships Pro for LearnDash, LifterLMS, Sensei LMS & TutorLMS 1.2.5 closes this, and updating the plugin is the step that ends it.
- Firewall
- 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