Vulnerability · Published Jun 26, 2026 · Assigned by Patchstack
CVE-2026-56063WordPress MailChimp Block plugin <= 1.1.15 - Broken Access Control vulnerability
High 8.3
In plain English
A high-severity missing authorization in MailChimp Block from bPlugins. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.3%top 77.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Unauthenticated Broken Access Control in MailChimp Block <= 1.1.15 versions.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| bPlugins | MailChimp Block | n/a – through 1.1.15 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L