CVE-2026-3226 LearnPress <= 4.3.2.8 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Email Notification Triggering

Medium 4.3 Published Updated

Authenticated subscribers can trigger arbitrary email notifications due to missing capability checks, enabling spam and social engineering attacks.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-3226?

CVE-2026-3226 is a medium-severity missing authorization vulnerability in thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses, published on 12 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-862

Which versions are affected by CVE-2026-3226?

How do I fix CVE-2026-3226?

No fix has been published for CVE-2026-3226 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-3226 being exploited?

There is no known exploitation of CVE-2026-3226 in the wild and no public exploit code.

Sources

Also known as GHSA-6fmm-qmfj-8phm.

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