Sensitive Data Exposure in HubSpot by HubSpot, Inc.
CVE-2026-57736

7.4HIGH

Key Information:

Vendor

WordPress
Status
Hubspot
Vendor
CVE Published:
1 July 2026

What is CVE-2026-57736?

The vulnerability allows unauthorized retrieval of sensitive data embedded within sent information in HubSpot. This issue primarily impacts versions from n/a through 11.3.51, potentially exposing critical user data, which raises significant concerns about information security and data integrity.

Affected Version(s)

HubSpot <= 11.3.51

References

https://patchstack.com/database/wordpress/plugin/leadin/v...
vdb-entry

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jakub Herman | Patchstack Bug Bounty Program
.