Tutor LMS <= 3.9.7 - Missing Authorization to Authenticated (Subscriber+) Unauthorized Private Course Enrollment

5.4
Missing Authorization
CVE CVE-2026-3358
CVSS 5.4 (Medium)
Publicly Published April 10, 2026
Last Updated April 11, 2026
Researcher Mohammad Amin Hajian (mamadrce)

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.

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Vulnerability Details for Tutor LMS – eLearning and online course solution

Software Type Plugin
Software Slug tutor (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.9.8, or a newer patched version
Affected Version
  • <= 3.9.7
Patched Version
  • 3.9.8

Recent vulnerabilities in Tutor LMS – eLearning and online course solution

# Title CVE ID CVSS Researchers Date
1 Tutor LMS <= 4.0.0 - Authenticated (Subscriber+) SQL Injection via Stored Quiz Answer Array CVE-2026-15022 6.5 Supakiad S. (m3ez) July 15, 2026
2 Tutor LMS <= 3.9.13 - Authenticated (Author+) Stored Cross-Site Scripting via Lesson Attachment Title CVE-2026-13443 6.4 skyv3il June 30, 2026
3 Tutor LMS <= 3.9.11 - Authenticated (Administrator+) SQL Injection via 'data' Parameter CVE-2026-10736 4.9 s1kr10s June 17, 2026
4 Tutor LMS <= 3.9.9 - Insecure Direct Object Reference to Authenticated (Instructor+) Arbitrary Post Deletion via 'course' GET Parameter CVE-2026-6965 5.3 molten bit May 12, 2026
5 Tutor LMS – eLearning and online course solution <= 3.9.7 - Missing Authorization CVE-2026-40743 5.3 lagi bljr April 20, 2026
6 Tutor LMS <= 3.9.8 - Authenticated (Admin+) SQL Injection via 'date' Parameter CVE-2026-6080 6.5 PRISM April 16, 2026
7 Tutor LMS <= 3.9.8 - Authenticated (Subscriber+) Arbitrary Course Content Manipulation via tutor_update_course_content_order CVE-2026-5502 5.3 momopon1415 April 16, 2026
8 Tutor LMS <= 3.9.7 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Course Content Modification CVE-2026-3371 4.3 Hunter Jensen (skid) April 10, 2026
9 Tutor LMS <= 3.9.7 - Missing Authorization to Unauthenticated Arbitrary Billing Profile Overwrite via 'order_id' Parameter CVE-2026-3360 7.5 Supakiad S. (m3ez) April 9, 2026
10 Tutor LMS – eLearning and online course solution <= 3.9.4 - Authenticated (Subscriber+) Insecure Direct Object Reference CVE-2025-32223 4.3 daroo March 16, 2026

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