Security Flaw in Mailchimp for WooCommerce Plugin Exposes Admin Endpoints
CVE-2026-92435

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Mailchimp For WooCommerce
Vendor
CVE Published:
19 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-92435?

The Mailchimp for WooCommerce plugin, prior to version 6.1.1, contains a significant security flaw that allows unauthenticated users to interact with sensitive REST API endpoints. This occurs due to inadequate checks in the permission callback, which permits unauthorized users to create persistent changes typically reserved for administrators. As a result, an attacker can exploit this vulnerability to manipulate administrative data without proper credentials, posing a serious threat to the integrity of WordPress sites utilizing this plugin.

Affected Version(s)

Mailchimp for WooCommerce 0 < 6.1.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-92435 - Proof of Concept

References

https://wpscan.com/vulnerability/4b3f9c83-8986-40d9-ab1a-...
exploitvdb-entrytechnical-description

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

  • 🟡

    Public PoC available

  • đź‘ľ

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pablo González and Francisco José Ramírez
WPScan
.