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CVE-2026-14345

9.8 · CRITICAL

The WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.12.7 via the 'pos…

Published Jul 7, 2026CWE-434EPSS 1.39%

Overview

CVE-2026-14345 is a critical-severity vulnerability. It was published on July 7, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 3.12.7 via the 'postData' parameter parameter. This is due to unsanitized write of attacker-controlled postData values into a PHP-includeable .log file combined with the use of include_once to render that file in wpfnl_show_log. This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires that the Log Settings "Enable Logs" toggle is on and that an administrator subsequently opens the polluted log file via the plugin's Log Settings View UI; however, the nonce required to reach the optin endpoint is publicly emitted on every funnel step page, so the injection step itself is fully unauthenticated.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refplugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.5/admin/modules/settings/class-wpfnl-settings.php#L709Refplugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.5/includes/core/classes/class-wpfnl-ajax-handler.php#L39Refplugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.5/includes/core/classes/class-wpfnl-ajax-handler.php#L523Refplugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.5/public/class-wpfnl-public.php#L1185Refplugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.7/admin/modules/settings/class-wpfnl-settings.php#L709Refplugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.7/includes/core/classes/class-wpfnl-ajax-handler.php#L39Refplugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.7/includes/core/classes/class-wpfnl-ajax-handler.php#L523Refplugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.7/public/class-wpfnl-public.php#L1185Refplugins.trac.wordpress.org/changeset/3597260/wpfunnels/trunk/admin/modules/settings/class-wpfnl-settings.phpRefplugins.trac.wordpress.org/changeset?old_path=%2Fwpfunnels/tags/3.12.7&new_path=%2Fwpfunnels/tags/3.12.8

How CyberStrike helps

Frequently asked questions

What is CVE-2026-14345?

CVE-2026-14345 is a critical-severity vulnerability. It was published on July 7, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-14345?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-14345?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-14345?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-14345 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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