CVE-2026-49765 CRITICAL

CVE-2026-49765: WordPress Integration for Mailchimp and Contact Form 7, WPForms, Elementor, Ninja Forms plugin <= 1.1.8 - PHP Object Injection vulnerability

Vendor Crm Perks
Product Integration for Mailchimp and Contact Form 7, WPForms, Elementor, Ninja Forms
Weakness CWE-502 · Unsafe deserialization
Published June 15, 2026
Last update June 16, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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

Explanation of Vulnerability in Simple Terms

02Summary

The Integration for Mailchimp and Contact Form 7 plugin processes untrusted data without proper validation, allowing an attacker to execute arbitrary PHP code on the site. No authentication or user interaction is required. All versions up to 1.1.8 are affected. Site administrators should update immediately to a patched version.

What an attacker can do

03Attacker Capabilities

Run arbitrary PHP code on the site and take full control of it.

Potential impact on your site

04Site Impact

Complete compromise of the WordPress site, including data theft, malware installation, and defacement.

Conditions required to exploit

05Prerequisites

Network access only; no authentication or user interaction required.

Key dates

06Disclosure timeline

June 15, 2026 CVE published
June 16, 2026 Record updated

Related vulnerabilities

08Related CVE

CVE-2026-42687 WordPress EventPrime plugin <= 4.3.2.1 - PHP Object Injection vulnerability CVE-2026-27053 WordPress Broadcast Live Video plugin < 7.1.3 - PHP Object Injection vulnerability CVE-2026-12240 Export User Data <= 2.2.6 - Authenticated (Subscriber+) PHP Object Injection to Arbitrary File Deletion via display_name Field CVE-2026-12115 Counter Box <= 2.0.13 - Authenticated (Administrator+) PHP Object Injection via Import CVE-2026-3328 Frontend Admin by DynamiApps <= 3.28.31 - Authenticated (Editor+) PHP Object Injection via 'post_content' of Admin Form Posts