CVE-2026-49765 Deserialization in Integration for Mailchimp and Contact Form 7, WPForms, Elementor, Ninja Forms

Critical 9.8 Published Updated

Unauthenticated attackers can exploit PHP object injection in this WordPress plugin to potentially execute arbitrary code.

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-2026-49765?

CVE-2026-49765 is a critical unsafe deserialization vulnerability in CRM Perks Integration for Mailchimp and Contact Form 7, WPForms, Elementor, Ninja Forms, published on 15 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unauthenticated PHP Object Injection in Integration for Mailchimp and Contact Form 7, WPForms, Elementor, Ninja Forms <= 1.1.8 versions.

Weakness: CWE-502

Which versions are affected by CVE-2026-49765?

How do I fix CVE-2026-49765?

No fix has been published for CVE-2026-49765 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-2026-49765 being exploited?

There is no known exploitation of CVE-2026-49765 in the wild and no public exploit code.

Sources

Also known as GHSA-3f48-hjp5-xvrg.

Is CVE-2026-49765 in your software?

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