Missing Authorization in MailChimp Campaigns Plugin for WordPress
CVE-2026-1303

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Mailchimp Campaigns
Vendor
CVE Published:
14 February 2026

What is CVE-2026-1303?

The MailChimp Campaigns plugin for WordPress has a security flaw due to inadequate capability checks, allowing authenticated users with Subscriber-level access to disconnect the site from the MailChimp synchronization app. This vulnerability disrupts automated email campaigns and undermines marketing efforts, posing a significant risk to affected users who rely on these integrations for effective campaign management.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

MailChimp Campaigns * <= 3.2.4

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/olalaweb-mailc...
https://plugins.trac.wordpress.org/browser/olalaweb-mailc...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nabil Irawan
JSON
.