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.
CVE-2026-14345
This critical-severity CVE scores 9.8 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(low)
- EPSS
- —
- KEV
- Not listed
Published
July 7, 2026
Last Modified
July 7, 2026
References (11)
- linkhttps://www.wordfence.com/threat-intel/vulnerabilities/id/5d84d749-0ab5-49dd-8e4f-45681f197742?source=cve
- linkhttps://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.7/admin/modules/settings/class-wpfnl-settings.php#L709
- linkhttps://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.7/public/class-wpfnl-public.php#L1185
- linkhttps://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.7/includes/core/classes/class-wpfnl-ajax-handler.php#L523
- linkhttps://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.7/includes/core/classes/class-wpfnl-ajax-handler.php#L39
- linkhttps://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.5/admin/modules/settings/class-wpfnl-settings.php#L709
- linkhttps://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.5/public/class-wpfnl-public.php#L1185
- linkhttps://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.5/includes/core/classes/class-wpfnl-ajax-handler.php#L523
- linkhttps://plugins.trac.wordpress.org/browser/wpfunnels/tags/3.12.5/includes/core/classes/class-wpfnl-ajax-handler.php#L39
- linkhttps://plugins.trac.wordpress.org/changeset/3597260/wpfunnels/trunk/admin/modules/settings/class-wpfnl-settings.php
- linkhttps://plugins.trac.wordpress.org/changeset?old_path=%2Fwpfunnels/tags/3.12.7&new_path=%2Fwpfunnels/tags/3.12.8
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-07 06:17 UTCEG score recompute
- 2026-07-07 06:16 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-434
Frequently asked(4)
What is CVE-2026-14345?
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Dependency Blast Radius
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