Critical

CVE-2026-49763: Security Advisory

CVE-2026-49763 CVSS 9.8
Who it affects
Unauthenticated PHP Object Injection in Integration for Contact Form 7 HubSpot <= 1.3.7 versions.
What to do
Apply the vendor's update in your next patch window.
Deploy the fix with Action1AutomoxManageEngine Patch Manager PlusManageEngine Endpoint Central Are you exposed? Compare patch tools →

CVE-2026-49763 is a critical-severity vulnerability (CVSS 9.8).

Summary

Unauthenticated PHP Object Injection in Integration for Contact Form 7 HubSpot <= 1.3.7 versions.

Remediation

Apply the vendor’s update during your next patch window and verify exposure. Patch-management tools that can deploy and verify the fix include Action1, Automox, ManageEngine Patch Manager Plus, ManageEngine Endpoint Central. See our best patch management ranking.

Sources

Data as of June 16, 2026. Sources: nvd.nist.gov, patchstack.com. Figures are pulled from public vendor and security data and refreshed automatically.