Vulnerability · Published Sep 27, 2026 · Assigned by WPScan

CVE-2026-92436Mailchimp for WooCommerce < 6.3 - Unauthenticated Customer Email and Cart Disclosure via IDOR

Medium 5.3

In plain English

A medium-severity authorization bypass via user-controlled key in Mailchimp for WooCommerce from Unknown. 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 19% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.3%top 80.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The Mailchimp for WooCommerce WordPress plugin before 6.3 does not require authentication or verify ownership before loading a saved cart from a request-supplied identifier that is derived from a customer's email address, allowing an unauthenticated attacker who knows a customer's email address to confirm that the customer shops at the store and to read that customer's saved cart contents.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Mailchimp for WooCommerce	0 – before 6.3

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

https://wpscan.com/vulnerability/f4d7b94a-7699-464c-a646-5946837b363a/ exploit, vdb-entry, technical-description