CVE-2026-104736

The LearnPress plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and…

Risk score: 81/100
CVSS: 9.8 v3.1
Exploit chance (30 days): 0.4%
Published: 17 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is: The LearnPress plugin for WordPress is vulnerable to PHP Object Injection in versions up to, and including, 4.4.10. An attacker can inject a PHP Object without authentication, allowing for potential code execution.
Affected: {'products': ['WordPress'], 'packages': ['LearnPress plugin'], 'versions': ['up to and including 4.4.10']}
Fix: Upgrade to a version higher than 4.4.10
Exploitation: No known exploitation

Why it is Red

CVSS 9.8 critical
Remotely exploitable without logging in
On your watchlist: php

References

Original 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.

Last activity 17 Oct 2026. Patch Forecast updates every hour.