thimpress LearnPress Plugin up to 4.3.2.8 on WordPress SendEmailAjax Class catch_lp_ajax authorization

Summaryinfo

A vulnerability labeled as problematic has been found in thimpress LearnPress Plugin up to 4.3.2.8 on WordPress. This vulnerability affects the function AbstractAjax::catch_lp_ajax of the component SendEmailAjax Class. Executing a manipulation can lead to authorization. The identification of this vulnerability is CVE-2026-3226. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in thimpress LearnPress Plugin up to 4.3.2.8 on WordPress. It has been declared as problematic. This vulnerability affects the function AbstractAjax::catch_lp_ajax of the component SendEmailAjax Class. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect integrity. CVE summarizes:

The LearnPress – WordPress LMS Plugin plugin for WordPress is vulnerable to unauthorized email notification triggering due to missing capability checks on all 10 functions in the SendEmailAjax class in all versions up to, and including, 4.3.2.8. The AbstractAjax::catch_lp_ajax() dispatcher verifies a wp_rest nonce but performs no current_user_can() check before dispatching to handler functions. The wp_rest nonce is embedded in the frontend JavaScript for all authenticated users. This makes it possible for authenticated attackers, with Subscriber-level access and above, to trigger arbitrary email notifications to admins, instructors, and users, enabling email flooding, social engineering, and impersonation of admin decisions regarding instructor requests.

The weakness was shared by Jack Pas. The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-3226 since 02/25/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available.

Upgrading to version 4.3.2.7 eliminates this vulnerability.

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Productinfo

Type

• WordPress Plugin

Vendor

• thimpress

Name

• LearnPress Plugin

Version

• 4.3.2.0
• 4.3.2.1
• 4.3.2.2
• 4.3.2.3
• 4.3.2.4
• 4.3.2.5
• 4.3.2.6
• 4.3.2.7
• 4.3.2.8

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CPE 2.2info

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