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Critical severity · published Sep 5, 2026
CVE-2026-10196
Mail Mint <= 1.31.0 - Unauthenticated PHP Object Injection in Arbitrary Form Fields
9.8
CVSS
1.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MM
Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails · getwpfunnels
through 1.31.0 · source: vendor
Affected product
MM
Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails
getwpfunnels
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-10196
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-10196
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.21.0/app/API/Actions/Frontend/FormAction.php#L59
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.21.0/app/Database/models/ContactModel.php#L460
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mail-mint/tags/1.21.0/vendor/posthog/posthog-php/lib/Consumer/ForkCurl.php#L96
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mail-mint/trunk/app/API/Actions/Frontend/FormAction.php#L59
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mail-mint/trunk/app/Database/models/ContactModel.php#L460
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/mail-mint/trunk/vendor/posthog/posthog-php/lib/Consumer/ForkCurl.php#L96
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