CVE-2026-109208: thimpress learnpress – wordpress lms plugin for create and sell online courses Cross-site Scripting

Vulnerability summary

CVE-2026-109208 is a high (CVSS 7.2) Cross-site Scripting vulnerability in thimpress learnpress – wordpress lms plugin for create and sell online courses. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 19.7% of scored vulnerabilities.

Timeline

1. 17-10-2026
   PublishedVulnerability first disclosed.
2. 18-10-2026
   Last modifiedVulnerability information updated.

Description

The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'quantity (REST) / order_comments (checkout)' parameter in all versions up to, and including, 4.4.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. With guest checkout enabled the attack is fully unauthenticated; with guest checkout disabled, any Subscriber-level user can exploit both vectors through their own checkout.

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.