Unauthenticated PHP Object Injection in Integration for Contact Form 7 by HubSpot
CVE-2026-49763

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Integration For Contact Form 7 Hubspot
Vendor
CVE Published:
15 June 2026

What is CVE-2026-49763?

This vulnerability occurs in the Integration for Contact Form 7 HubSpot plugin, allowing attackers to exploit unauthenticated PHP Object Injection. When using versions up to 1.3.7, improperly handled user inputs can lead to unauthorized actions on the WordPress site, putting sensitive data at risk. It is crucial for users to update to the latest version and implement security best practices to mitigate potential exploitation.

Affected Version(s)

Integration for Contact Form 7 HubSpot <= 1.3.7

References

https://patchstack.com/database/wordpress/plugin/cf7-hubs...
vdb-entry

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Frissi0n | Patchstack Bug Bounty Program
.