Tutor LMS <= 4.0.8 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Deletion via 'lesson_id' Parameter
Summary
| CVE | CVE-2026-88944 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-19 03:17:16 UTC |
| Updated | 2026-09-19 03:17:16 UTC |
| Description | The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.0.8. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to permanently delete arbitrary WordPress posts — including pages, courses, quizzes, and WooCommerce products — via wp_delete_post( $id, true ). The exploit chain requires the attacker to first trigger the profile-photo upload flow to obtain an authored wp_posts attachment row, then create a Tutor topic reparented to that attachment, before invoking the lesson deletion handler against any target post ID. |
Risk And Classification
Primary CVSS: v3.1 4.3 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
| 3.1 | CNA | DECLARED | 4.3 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
LowAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Themeum | Tutor LMS ELearning And Online Course Solution | affected 4.0.8 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/User.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Course.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Utils.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Utils.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Course.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Lesson.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/changeset | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/tutor/tags/4.0.7/classes/Utils.php | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/7e23fcd0-62b4-460d-9b64-8adbf... | [email protected] | www.wordfence.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: EUNHO KIM (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-09-18T14:03:05.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.