CVE-2026-57736Network attack vector

Authenticated retrieval of embedded sensitive data

Published Jul 1, 2026 · Updated Jul 1, 2026

Sensitive-data exposure in HubSpot All-In-One Marketing 11.3.55 and earlier allows remote authenticated users to retrieve embedded data. Patchstack has not disclosed the affected endpoint, the sensitive fields inserted into outbound data, or the retrieval operation. Contributor-level access is required, while the exact exposed data and resulting cross-scope effects remain unspecified.

CVSS severity7.4
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive-data exposure in HubSpot All-In-One Marketing 11.3.55 and earlier allows remote authenticated users to retrieve embedded data. Patchstack has not disclosed the affected endpoint, the sensitive fields inserted into outbound data, or the retrieval operation. Contributor-level access is required, while the exact exposed data and resulting cross-scope effects remain unspecified.

The record

CVE
CVE-2026-57736
Published
Jul 1, 2026
Updated
Jul 1, 2026
Vendor
HubSpot, Inc.
Product
HubSpot All-In-One Marketing – Forms, Popups, Live Chat
Classifications
CWE-201, CAPEC-37
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 1, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=n/a <=11.3.51

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

HubSpot, Inc. · HubSpot All-In-One Marketing – Forms, Popups, Live Chatversion=n/a <=11.3.51

Published CVSS scores

7.4PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-201Insertion of Sensitive Information Into Sent Data
CAPEC-37Retrieve Embedded Sensitive Data

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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