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Vulnerability · Published Jul 7, 2026 · Assigned by Wordfence

CVE-2026-14345WPFunnels <= 3.12.7 - Unauthenticated Remote Code Execution via 'postData' Parameter

Critical 9.8

In plain English

A critical-severity unrestricted file upload in WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell from getwpfunnels. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.4%top 27.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
getwpfunnels WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell 0 – through 3.12.7

Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References