CVE-2026-49104

Deferred Deferred - Pending Action

Unauthenticated PHP Object Injection in Keap/Infusionsoft Integration Plugins

Publication date: 2026-06-15

Last updated on: 2026-06-15

Assigner: Patchstack

Description

Unauthenticated PHP Object Injection in Integration for Keap/infusionsoft and Contact Form 7, WPForms, Elementor, Formidable, Ninja Forms <= 1.2.1 versions.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-06-15

Last Modified

2026-06-15

Generated

2026-07-06

AI Q&A

2026-06-16

EPSS Evaluated

2026-07-04

NVD

CVE-2026-49104

Affected Vendors & Products

Vendor	Product	Version / Range
keap	infusionsoft	to 1.2.1 (inc)
contact_form_7	contact_form_7	to 1.2.1 (inc)
wpforms	wpforms	to 1.2.1 (inc)
elementor	elementor	to 1.2.1 (inc)
formidable	formidable	to 1.2.1 (inc)
ninja_forms	ninja_forms	to 1.2.1 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-502	The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Attack-Flow Graph

Executive Summary

This vulnerability is an unauthenticated PHP Object Injection affecting the Integration for Keap/infusionsoft and several WordPress form plugins including Contact Form 7, WPForms, Elementor, Formidable, and Ninja Forms up to version 1.2.1.

PHP Object Injection occurs when an attacker is able to inject a serialized PHP object into an application, which can then be deserialized and executed by the server without proper validation or authentication.

Because this vulnerability is unauthenticated, an attacker does not need to be logged in or have any privileges to exploit it.

Impact Analysis

The vulnerability has a very high severity with a CVSS v3.1 base score of 9.8, indicating critical impact.

Exploitation can lead to full compromise of the affected system, including complete confidentiality, integrity, and availability loss.

Confidentiality (C): High - sensitive data can be exposed.
Integrity (I): High - attacker can modify data or code.
Availability (A): High - attacker can disrupt or disable services.

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