CVE-2023-6223: Thimpress Learnpress

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The LearnPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.2.5.7 via the /wp-json/lp/v1/profile/course-tab REST API due to missing validation on the 'userID' user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to retrieve the details of another user's course progress.

Affected products

• Thimpress Learnpress: up to and including 4.2.5.7

Published 2024-01-11. Last modified 2026-06-17.