LearnPress – WordPress LMS Plugin for Create and Sell Online Courses: Cross-site scripting
LearnPress – WordPress LMS Plugin for Create and Sell Online Courses is affected by cross-site scripting. Exploitation requires an authenticated contributor account. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 4.4.0.
- Component
- LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
- Plugin slug
learnpress- Affected
- <= 4.4.0
- Safe version
- See mitigation notes
- Published
- Jul 01, 2026
This CVE was published Jul 01, 2026 and is one of 81 known issues for this plugin.
Update, patch or deactivate.
No fixed release is identified. Update LearnPress – WordPress LMS Plugin for Create and Sell Online Courses when a release after 4.4.0 becomes available; until then, disable and remove it when the site's risk warrants. The official upstream changelog lists version 4.4.4, which is newer than the published affected range. Its changelog does not clearly confirm this specific fix, so it is not counted as a known-safe release.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The LearnPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'class_wrapper_form' shortcode attribute in versions up to, and including, 4.4.0. This is due to insufficient input sanitization and output escaping in the FilterCourseTemplate::sections() method at line 98, where the attacker-controlled attribute is inserted into an HTML class attribute via sprintf('<form class="%s">', $class_wrapper_form) without esc_attr() escaping. The FilterCourseShortcode::render() handler does not apply shortcode_atts() filtering, so raw user attributes flow directly through do_action('learn-press/filter-courses/layout', $data) into the template. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N