WordPress · Mail Mint · CVE-2026-10196
**Name of the Vulnerable Software and Affected Versions**
Mail Mint – Email Marketing, Newsletter, Email Automation & WooCommerce Emails versions prior to 1.31.1
**Description**
This issue involves PHP Object Injection caused by the deserialization of untrusted input within the `handle form submission()` function. This allows unauthenticated attackers to inject a PHP Object, which, combined with a POP chain (a sequence of gadgets used to execute arbitrary code), enables remote code execution on the server.
**Recommendations**
Update the plugin to a version later than 1.31.0.
As a temporary mitigation, restrict access to the `handle form submission()` function.