Access Control Flaw in HubSpot REST API Exposes User Data
CVE-2023-37749

5.3MEDIUM

Key Information:

Vendor

HubSpot

Status
HubSpot REST API
Vendor
CVE Published:
27 October 2025

What is CVE-2023-37749?

An access control vulnerability exists in the REST API of HubSpot v1.29441, enabling unauthenticated users to access sensitive user data without appropriate authorization. This flaw potentially exposes personal and property information, making it crucial for organizations using HubSpot to implement necessary security measures to safeguard their data against unauthorized access.

References

https://app.hubspot.com/api/external-options/v2/pagedFetc...
https://owasp.org/Top10/A01_2021-Broken_Access_Control/
https://gist.github.com/0xDBJ/28072f7eea42571d5b4ebaabdcb...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.