CVE-2026-56063

Name: CVE-2026-56063
Creator: NVD / NIST
Published: 2026-06-26T15:16:45.737+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.3/10

Last modified Jun 26, 2026

CVE-2026-56063 is a high-severity vulnerability rated 8.3/10 on the CVSS scale. Unauthenticated Broken Access Control in MailChimp Block <= 1.1.15 versions..

Description

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

Metrics

CVSS 3.1

8.3/10

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

Weakness Enumeration

CWE-862

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

Timeline

Published: Jun 26, 2026
Last Modified: Jun 26, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-56063?

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

How severe is CVE-2026-56063?

CVE-2026-56063 has a CVSS score of 8.3/10 (HIGH severity).

How do I fix CVE-2026-56063?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-56063?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST