Stored Cross-Site Scripting Vulnerability in Masteriyo LMS Plugin for WordPress
CVE-2026-82846
Currently unrated
Key Information:
- Vendor
WordPress
- Status
- Vendor
- CVE Published:
- 5 September 2026
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-82846?
The Masteriyo LMS WordPress plugin prior to version 3.4.0 is susceptible to a Stored Cross-Site Scripting (XSS) vulnerability due to improper sanitization and escaping of certain course settings. This flaw allows users with a course-author role to inject malicious scripts into the output, which can then execute in the session of any visitor viewing the affected course page, including logged-in administrators. This presents a significant security risk as it can lead to unauthorized information access or modification.
Affected Version(s)
Masteriyo LMS 1.18.0 < 3.4.0
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.