TI-2026-67439 Aliases CVE-2026-92437 GHSA-g66g-hh39-fx5j

Mailchimp for WooCommerce < 6.3 - Unauthenticated Abandoned Cart Modification and Deletion

LOW 29CWE-862Published 2026-10-03 · Updated 2026-10-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.

Summary

The Mailchimp for WooCommerce WordPress plugin before 6.3 does not require authentication, a nonce or an ownership check before it acts on a customer's abandoned-cart record identified from request-supplied data, allowing an unauthenticated attacker to modify or delete another customer's stored cart.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00221 12th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix Fixed Mailchimp for WooCommerce (Unknown): 6.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Unknown	Mailchimp for WooCommerce	before 6.3	6.3	Patch available	CNA

Mailchimp for WooCommerce VendorUnknown Affected before 6.3 Fixed in 6.3 Patch available CNA

Remediation

Fix · CNA Mailchimp for WooCommerce (Unknown) Fixed in 6.3

Timeline

2026-10-03 Threatist record created from CVE-2026-92437
2026-10-03 Alias added: GHSA-g66g-hh39-fx5j
2026-10-03 CVSS score added · CISA ADP
2026-10-03 Weakness changed · CISA ADP
2026-10-03 CISA SSVC decision points changed

References

Exploit 1

https://wpscan.com/vulnerability/47b3aa17-f7fd-42df-9ef0-e33b5da8f955/

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences