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NVD CRITICAL: CVE-2026-104736 — The LearnPress plugin for WordPress is vulnerable to PHP Object Injection in ver...

·Source: NIST NVD

Updated:

Executive Summary

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:

Analysis

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. CVSS Score: 9.8. Published: 2026-10-17T04:16:47.780.

Indicators of Compromise (1)

CVE (1)
CVE-2026-104736
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Oct 17, 2026. Verified by: NIST.

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