Vulnerability · Published Sep 5, 2026 · Assigned by Wordfence
CVE-2026-10196Mail Mint <= 1.31.0 - Unauthenticated PHP Object Injection in Arbitrary Form Fields
Critical 9.8
In plain English
A critical-severity unsafe deserialization in Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails from getwpfunnels. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
The Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.31.0 via deserialization of untrusted input in the 'handle_form_submission' function. This makes it possible for unauthenticated attackers to inject a PHP Object. The additional presence of a POP chain allows attackers to execute code on the server. The vulnerability was partially patched in version 1.23.1.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| getwpfunnels | Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails | 0 – through 1.31.0 |
Weakness: CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/76c073d9-9572-43e4-82eb-49adf678535b?source=cve
- https://plugins.trac.wordpress.org/browser/mail-mint/trunk/vendor/posthog/posthog-php/lib/Consumer/ForkCurl.php#L96
- https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.21.0/vendor/posthog/posthog-php/lib/Consumer/ForkCurl.php#L96
- https://plugins.trac.wordpress.org/browser/mail-mint/trunk/app/Database/models/ContactModel.php#L460
- https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.21.0/app/Database/models/ContactModel.php#L460
- https://plugins.trac.wordpress.org/browser/mail-mint/trunk/app/API/Actions/Frontend/FormAction.php#L59
- https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.21.0/app/API/Actions/Frontend/FormAction.php#L59
- https://plugins.trac.wordpress.org/changeset/3545065/
- https://plugins.trac.wordpress.org/changeset/3675453/