CVE-2026-56063Network attack vector

Unauthenticated access to unspecified plugin functionality

Published Jun 26, 2026 · Updated Jun 26, 2026

Missing authorization in bPlugins Block for Mailchimp 1.1.15 and earlier allows remote attackers to access unspecified plugin functionality. Patchstack has not published the affected function, endpoint, protected resource, or exact authorization check omitted by the plugin. No authentication or user interaction is required, but the resulting resource access or higher-privileged action is not identified.

CVSS severity8.3
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in bPlugins Block for Mailchimp 1.1.15 and earlier allows remote attackers to access unspecified plugin functionality. Patchstack has not published the affected function, endpoint, protected resource, or exact authorization check omitted by the plugin. No authentication or user interaction is required, but the resulting resource access or higher-privileged action is not identified.

The record

CVE
CVE-2026-56063
Published
Jun 26, 2026
Updated
Jun 26, 2026
Vendor
bPlugins
Product
Block for Mailchimp
Classifications
CWE-862, CAPEC-180, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 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 <=1.1.15 changes=[{"at":"1.1.16","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

bPlugins · Block for Mailchimpversion=n/a <=1.1.15 changes=[{"at":"1.1.16","status":"unaffected"}]

Published CVSS scores

8.3PatchstackCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
CAPEC-180Exploiting Incorrectly Configured Access Control Security Levels
T1190Exploit Public-Facing Application

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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