CVE-2022-2556: MailChimp for Woocommerce < 2.7.2 - Admin+ SSRF

Severity: low (CVSS 2.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-08-29 · updated 2026-06-17
Weakness: CWE-918

Description

The Mailchimp for WooCommerce WordPress plugin before 2.7.2 has an AJAX action that allows high privilege users to perform a POST request on behalf of the server to the internal network/LAN, the body of the request is also appended to the response so it can be used to scan private network for example

Affected products

Mailchimp for WooCommerce: before 2.7.2 — fixed in 2.7.2

How to fix

Upgrade to a fixed version: Mailchimp for WooCommerce 2.7.2. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/f2a59eaa-6b44-4098-912f-823289cf33b0
https://wpscan.com/vulnerability/f2a59eaa-6b44-4098-912f-823289cf33b0

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