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CVE-2026-104736

9.8, critical

Thimpress LearnPress - WordPress LMS Plugin for Create and Sell Online Courses Deserialization of Untrusted Data Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.8, critical critical CVSS v3.1
EPSS, next 30 days
n/a
Exploitation
No public evidence
Published
17 Oct 2026yesterday

Description

The LearnPress plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.4.10 via deserialization of untrusted input from the 'checkout-email' request parameter during the checkout AJAX action. The value is passed through sanitize_text_field(), which does not strip serialized object syntax, then stored in the LearnPress session table and later fed to LP_Helper::maybe_unserialize() → unserialize() (without an allowed_classes restriction) by LP_Session_Handler::get() on subsequent requests. This makes it possible for unauthenticated attackers to inject a PHP Object.

Details

Vendor
Thimpress
Product
LearnPress - WordPress LMS Plugin for Create and Sell Online Courses
Weakness
CWE-502 (opens in a new tab)
Status
Received
Updated
17 Oct 2026
Assigner
security@wordfence.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References 6

Other references 6

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Thimpress CVEs

Every Thimpress CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-109208 Thimpress LearnPress - WordPress LMS Plugin for Create and Sell Online Courses Cross-Site Scripting Vulnerability 7.2, high

Beyond this page

Is CVE-2026-104736 in your network?

This page tells you how dangerous CVE-2026-104736 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-104736 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 18 Oct 2026, not the live upstream state.