ThimPress LearnPress Plugin up to 4.4.8 on WordPress Course Material AJAX render_material_items course_id/item_id resource injection

Summaryinfo

A vulnerability marked as problematic has been reported in ThimPress LearnPress Plugin up to 4.4.8. Affected is the function CourseMaterialTemplate::render_material_items of the component Course Material AJAX Handler. Performing a manipulation of the argument course_id/item_id results in resource injection. This vulnerability is identified as CVE-2026-93882. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in ThimPress LearnPress Plugin up to 4.4.8. It has been classified as problematic. This affects the function CourseMaterialTemplate::render_material_items of the component Course Material AJAX Handler. The manipulation of the argument course_id/item_id with an unknown input leads to a resource injection vulnerability. CWE is classifying the issue as CWE-99. The product receives input from an upstream component, but it does not restrict or incorrectly restricts the input before it is used as an identifier for a resource that may be outside the intended sphere of control. This is going to have an impact on confidentiality. The summary by CVE is:

The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 4.4.8 via the CourseMaterialTemplate::render_material_items() callback exposed on the public lp-ajax-handle (load_content_via_ajax) endpoint. The endpoint is explicitly listed in the AbstractAjax no-nonce allowlist and performs no capability check, and the render_material_items() handler decides authorization against one attacker-supplied identifier (course_id) while fetching the returned material rows via a second, independently attacker-supplied identifier (item_id) with no check that the lesson belongs to the authorized course. This makes it possible for unauthenticated attackers to read and download course-material files (uploaded and external file paths/URLs) belonging to lessons in paid or enrollment-required courses, provided any single course on the site has 'No Required Enroll' enabled and owns at least one material file.

The advisory is shared at wordfence.com. This vulnerability is uniquely identified as CVE-2026-93882 since 09/18/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/01/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• ThimPress

Name

• LearnPress Plugin

Version

• 4.4.0
• 4.4.1
• 4.4.2
• 4.4.3
• 4.4.4
• 4.4.5
• 4.4.6
• 4.4.7
• 4.4.8

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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