Stored Cross-Site Scripting in Masteriyo LMS Plugin for WordPress
CVE-2026-82847
Currently unrated
Key Information:
- Vendor
WordPress
- Status
- Vendor
- CVE Published:
- 12 September 2026
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-82847?
The Masteriyo LMS plugin for WordPress versions prior to 3.4.1 is vulnerable due to a failure to properly sanitize and escape course field inputs in the course editor. This flaw permits users assigned the instructor role to carry out Stored Cross-Site Scripting (XSS) attacks, potentially affecting users with higher privileges such as administrators. Malicious scripts could be injected and executed in the context of users who access affected pages, leading to unauthorized access or data manipulation.
Affected Version(s)
Masteriyo LMS 0 < 3.4.1
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.