Critical severity · published Jun 15, 2026
CVE-2026-49763
WordPress Integration for Contact Form 7 HubSpot plugin <= 1.3.7 - PHP Object Injection vulnerability
9.8
CVSS
0.4%
EPSS
No
On KEV
Description
Unauthenticated PHP Object Injection in Integration for Contact Form 7 HubSpot <= 1.3.7 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IF
Integration for Contact Form 7 HubSpot · CRM Perks
through 1.3.7 · source: vendor
Affected product
IF
Integration for Contact Form 7 HubSpot
CRM Perks
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-49763
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-49763
patchstack.com
https://patchstack.com/database/wordpress/plugin/cf7-hubspot/vulnerability/wordpress-integration-for-contact-form-7-hubspot-plugin-1-3-7-php-object-injection-vulnerability?_s_id=cve
More from Integration for Contact Form 7 HubSpot
7.6
CVE-2025-68590
WordPress Integration for Contact Form 7 HubSpot plugin <= 1.4.2 - SQL Injection vulnerability
5.3
CVE-2026-24559
WordPress Integration for Contact Form 7 HubSpot plugin <= 1.4.3 - Sensitive Data Exposure vulnerability
4.3
CVE-2024-34756
WordPress Integration for HubSpot and Contact Form 7 plugin <= 1.3.1 - Cross Site Request Forgery (CSRF) vulnerability