Description

The LearnPress – WordPress LMS Plugin for WordPress is vulnerable to unauthorized file deletion in versions up to, and including, 4.3.2.2 via the /wp-json/lp/v1/material/{file_id} REST API endpoint. This is due to a parameter mismatch between the DELETE operation and authorization check, where the endpoint uses file_id from the URL path but the permission callback validates item_id from the request body. This makes it possible for authenticated attackers, with teacher-level access, to delete arbitrary lesson material files uploaded by other teachers via sending a DELETE request with their own item_id (to pass authorization) while targeting another teacher's file_id.

Weaknesses 1

References 5

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.2.1/inc/rest-api/v1/frontend/class-lp-rest-material-controller.php#L405
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.2.1/inc/rest-api/v1/frontend/class-lp-rest-material-controller.php#L527
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.2.1/inc/rest-api/v1/frontend/class-lp-rest-material-controller.php#L77
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/learnpress/tags/4.3.2.3/inc/rest-api/v1/frontend/class-lp-rest-material-controller.php#L403
• wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/884c4508-1ee1-4384-9fc2-29e2c9042426?source=cve

Remediation