CVE-2026-104736

CriticalCVSS 9.8/10Last modified Oct 19, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-502

Affected software

No affected versions have been published.

Timeline

Published: Oct 17, 2026
Last modified: Oct 19, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-1047413.1The AI Puffer – Chat. Create. Automate. (formerly AI Power) plugin for WordPress is vulnerable to authorization bypass in all versions up to CVE-2026-1047423.1The AI Puffer – Chat. Create. Automate. (formerly AI Power) plugin for WordPress is vulnerable to authorization bypass in all versions up to CVE-2026-1047458.1The Customer Email Verification for WooCommerce plugin for WordPress is vulnerable to Privilege Escalation via the `alg_wc_ev_verify_email` CVE-2026-1047478.1Unauthenticated PHP Object Injection in Haaken <= 1.5 versions.CVE-2026-1047489.8The SimpleForm – Form Maker to Chat Apps with Quiz, Poll and Multi Lead Notifications plugin for WordPress is vulnerable to Privilege Escala CVE-2026-1047497.5The Bit integrations – Form Integration, Webhook, Spreadsheets, CRM, LMS & Email Automation plugin for WordPress is vulnerable to Privilege CVE-2026-1047515.3The Rank Math SEO WordPress plugin before 1.0.280 does not perform a capability or nonce check before clearing its stored SEO analysis data CVE-2026-1047527.2The Rank Math SEO WordPress plugin before 1.0.280 does not correctly validate the type of a file uploaded through its settings import featu CVE-2026-1047534.1The Rank Math SEO WordPress plugin before 1.0.280 does not properly sanitise and escape a parameter before using it in a SQL query, allowin CVE-2026-1047543.5The Rank Math SEO WordPress plugin before 1.0.280 does not escape a stored redirection source value before outputting it in an administrati CVE-2026-1047554.8The WP Compress – Instant Performance & Speed Optimization plugin for WordPress is vulnerable to Privilege Escalation in all versions up to,CVE-2026-1047577.2Editor Privilege Escalation in Import and export users and customers <= 2.5.5 versions.