CVE-2026-9691
Deferred Deferred - Pending Action
Unauthenticated PHP Object Injection in Integration for ActiveCampaign

Publication date: 2026-06-15

Last updated on: 2026-06-15

Assigner: Patchstack

Description
Unauthenticated PHP Object Injection in Integration for ActiveCampaign and Contact Form 7, WPForms, Elementor, Ninja Forms <= 1.1.1 versions.
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Meta Information
Published
2026-06-15
Last Modified
2026-06-15
Generated
2026-06-16
AI Q&A
2026-06-16
EPSS Evaluated
N/A
NVD
CVE-2026-9691
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
activecampaign integration to 1.1.1 (inc)
contact_form_7 contact_form_7 to 1.1.1 (inc)
wpforms wpforms to 1.1.1 (inc)
elementor elementor to 1.1.1 (inc)
ninja_forms ninja_forms to 1.1.1 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
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Executive Summary

This vulnerability is an unauthenticated PHP Object Injection affecting the Integration for ActiveCampaign and several WordPress plugins including Contact Form 7, WPForms, Elementor, and Ninja Forms in versions up to 1.1.1.

PHP Object Injection occurs when an attacker is able to inject a serialized PHP object into an application without authentication, potentially leading to arbitrary code execution or other malicious actions.

Impact Analysis

This vulnerability has a high severity with a CVSS score of 9.8, indicating it can have a critical impact.

  • An attacker can exploit this vulnerability remotely without any privileges or user interaction.
  • Successful exploitation can lead to full compromise of confidentiality, integrity, and availability of the affected system.
  • Potential impacts include arbitrary code execution, data theft, data manipulation, or denial of service.
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