The wp-courses plugin through 2.0.27 for WordPress allows remote attackers to bypass the intended payment step (for course videos and materials) by using the /wp-json REST API, as exploited in the wild in September 2020. This occurs because show_in_rest is enabled for custom post types (e.g., /wp-json/wp/v2/course and /wp-json/wp/v2/lesson exist).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Wp Courses Plugin | — | Update wp-courses plugin to version 2.0.29, or a newer patched version | May 15, 2025 | Sep 28, 2020 |
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