CVE-2026-10196 Mail Mint <= 1.31.0 - Unauthenticated PHP Object Injection in Arbitrary Form Fields

Critical 9.8 Published Updated

Unauthenticated attackers can achieve remote code execution via PHP object injection in the Mail Mint WordPress plugin.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-10196?

CVE-2026-10196 is a critical unsafe deserialization vulnerability in getwpfunnels Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails, published on 5 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

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.

Weakness: CWE-502

Which versions are affected by CVE-2026-10196?

How do I fix CVE-2026-10196?

No fix has been published for CVE-2026-10196 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2026-10196 being exploited?

There is no known exploitation of CVE-2026-10196 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-v38w-pf7m-c3pr.

Is CVE-2026-10196 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free