LearnPress WordPress LMS Plugin Stored Cross-Site Scripting Vulnerability

A stored cross-site scripting vulnerability has been identified in the LearnPress WordPress LMS Plugin, affecting all versions through 4.3.3. The issue arises from inadequate input sanitization and output escaping on the 'skin' attribute of the learn_press_courses shortcode. This vulnerability allows authenticated attackers with Contributor-level access and above to inject arbitrary scripts into pages, which are executed when users access the affected pages.

Impact

Exploitation of this vulnerability allows for stored cross-site scripting, where injected scripts are executed in the context of the user viewing the page.

Remediation

Users are advised to update the LearnPress WordPress LMS Plugin to version 4.3.4 or a newer patched version.