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Critical · 9.8 Scanner template Public exploit CVE-2026-104736 EUVD-2026-103224GHSA-xchc-mccm-x286

LearnPress <= 4.4.10 - Unauthenticated PHP Object Injection via 'checkout-email' Parameter

Published Oct 17, 2026 · Updated Oct 18, 2026 · Assigned by Wordfence

Vendor: ThimPress Product: LearnPress – WordPress LMS Plugin for Create and Sell Online Courses Category: Web / CMS

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.

Affected products

VendorProductAffectedFixed
thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses ≤ 4.4.10 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • murrez/CVE-2026-104736 ★ 0 · Oct 18, 2026

    PoC for CVE-2026-104736 — LearnPress ≤4.4.10 unauthenticated PHP object injection via checkout-email (lp-ajax=checkout). Check + exploit. Authorized testing only.

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

References