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
2026-06-16
AI Q&A
2026-06-16
EPSS Evaluated
N/A
NVD
CVE-2026-49104
Affected Vendors & Products
Showing 6 associated CPEs
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
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-502 The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
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.
Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-49104. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart