CVE-2026-79632
Received Received - Intake

Unauthenticated Email Sending in WPFunnels WordPress Plugin

Publication date: 2026-09-04

Last updated on: 2026-09-04

Assigner: WPScan

Description
The WPFunnels WordPress plugin before 3.13.0 does not perform any authorisation or nonce check in one of its opt-in submission handlers, and takes the notification recipients and subject from the request, allowing unauthenticated users to make the site send emails to arbitrary recipients with an arbitrary subject.

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Meta Information

Published
2026-09-04
Last Modified
2026-09-04
Generated
2026-09-04
AI Q&A
2026-09-04
EPSS Evaluated
N/A
NVD
CVE-2026-79632
EUVD
EUVD-2026-70906

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wpfunnels wpfunnels to 3.13.0 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability in the WPFunnels WordPress plugin before version 3.13.0 allows unauthenticated users to send emails to arbitrary recipients with custom subjects. It occurs because the plugin lacks proper authorization checks and nonce validation in its opt-in submission handler.

Detection Guidance

Check the installed version of the WPFunnels plugin. If it is below 3.13.0, the system is vulnerable. Look for unauthorized email sending attempts in server logs or WordPress activity logs.

Impact Analysis

Attackers could exploit this flaw to send phishing emails or spam from your website, potentially damaging your reputation or tricking users. It may also lead to unauthorized use of your site's email-sending functionality.

Compliance Impact

This vulnerability could violate GDPR or HIPAA by enabling unauthorized data processing or disclosure. Uncontrolled email sending may lead to unauthorized sharing of user data, triggering compliance breaches.

Mitigation Strategies

Update the WPFunnels plugin to version 3.13.0 or later immediately. Review server logs for suspicious email activity and restrict access to the opt-in submission handler if possible.

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