Security Advisory

CVE-2026-56063

WordPress MailChimp Block plugin <= 1.1.15 - Broken Access Control vulnerability

Published

26 Jun 2026, 14:52 UTC

CVSS

8.3 · High (v3.1)

Weakness

CWE-862

Assigning CNA

Patchstack

High 8.3CVSS 3.1CWE-862

Description

Unauthenticated Broken Access Control in MailChimp Block <= 1.1.15 versions.

Severity (CVSS)

Base score	8.3
Severity	High
Version	CVSS 3.1
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Provided by	CNA

Weaknesses

CWE-862 — CWE-862 Missing Authorization

Affected products

Vendor	Product	Versions
bPlugins	MailChimp Block	n/a to <=1.1.15

References

https://patchstack.com/database/wordpress/plugin/block-for-mailchimp/vulnerability/wordpress-mailchimp-block-plugin-1-1-15-broken-access-control-vulnerability?_s_id=cve (vdb-entry)

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 27 Jun 2026 07:02 UTC.