CVE-2026-9691 CRITICAL

CVE-2026-9691: WordPress Integration for ActiveCampaign and Contact Form 7, WPForms, Elementor, Ninja Forms plugin <= 1.1.1 - PHP Object Injection vulnerability

Vendor Crm Perks
Product Integration for ActiveCampaign and Contact Form 7, WPForms, Elementor, Ninja Forms
Weakness CWE-502 · Unsafe deserialization
Published June 15, 2026
Last update June 15, 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 ActiveCampaign and Contact Form 7, WPForms, Elementor, Ninja Forms <= 1.1.1 versions.

Explanation of Vulnerability in Simple Terms

02Summary

The Integration for ActiveCampaign plugin for Contact Form 7, WPForms, Elementor, and Ninja Forms versions up to 1.1.1 contains a deserialization vulnerability that allows unauthenticated attackers to run arbitrary code on the site. The plugin unsafely processes serialized data from untrusted sources, enabling remote code execution without authentication or user interaction.

What an attacker can do

03Attacker Capabilities

Run arbitrary code on your site and take complete control of it.

Potential impact on your site

04Site Impact

Complete site compromise. Attackers can steal data, modify content, install malware, or take the site offline.

Conditions required to exploit

05Prerequisites

None. The attacker needs only network access; no authentication or user interaction required.

Key dates

06Disclosure timeline

June 15, 2026 CVE published

Related vulnerabilities

08Related CVE

CVE-2026-32513 WordPress JS Archive List plugin <= 6.1.7 - PHP Object Injection vulnerability CVE-2026-7566 LearnPress – Backup & Migration Tool <= 4.1.4 - Authenticated (Administrator+) PHP Object Injection via WXR XML File Upload CVE-2026-49106 WordPress Integration for Contact Form 7 and Constant Contact plugin <= 1.1.6 - PHP Object Injection vulnerability CVE-2026-39472 WordPress WooCommerce PDF Invoices & Packing Slips plugin < 5.9.0 - PHP Object Injection vulnerability CVE-2026-39498 WordPress YayMail plugin <= 4.3.3 - PHP Object Injection vulnerability