CVE-2026-16563: Academy LMS < 3.8.3 - Subscriber+ Arbitrary Lesson Content Disclosure via lessons REST Endpoint
The Academy LMS WordPress plugin before 3.8.3 does not verify course enrollment or lesson publication status when returning a single lesson through its REST API, allowing users with a self-service student (Subscriber-level) account to disclose the content of arbitrary lessons, including lessons of paid courses they are not enrolled in and unpublished (draft, pending, private) lessons.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-16563?
The severity of CVE-2026-16563 is medium with a CVSS score of 6.5.
How do I fix CVE-2026-16563?
To fix CVE-2026-16563, update to the latest version of the Academy LMS plugin (3.8.3 or later).
What does CVE-2026-16563 affect?
CVE-2026-16563 affects the Academy LMS plugin for WordPress versions prior to 3.8.3.
What type of vulnerability is CVE-2026-16563?
CVE-2026-16563 is an arbitrary lesson content disclosure vulnerability.
Who is impacted by CVE-2026-16563?
Users with a self-service student (Subscriber-level) account are impacted by CVE-2026-16563.