Mailchimp for WooCommerce Plugin up to 2.7.1 on WordPress POST Request server-side request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability has been found in Mailchimp for WooCommerce Plugin up to 2.7.1 on WordPress (E-Commerce Management Software) and classified as critical. Affected by this vulnerability is some unknown processing of the component POST Request Handler. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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

The weakness was published 08/30/2022. It is possible to read the advisory at This vulnerability is known as CVE-2022-2556 since 07/27/2022. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.7.2 eliminates this vulnerability.




CPE 2.3info

CPE 2.2info


VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 2.7
NVD Vector: 🔒



VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍


Class: Server-side request forgery
CWE: CWE-918
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Mailchimp for WooCommerce Plugin 2.7.2


07/27/2022 CVE reserved
08/30/2022 +34 days Advisory disclosed
08/30/2022 +0 days VulDB entry created
10/09/2022 +40 days VulDB last update


Status: Confirmed

CVE: CVE-2022-2556 (🔒)


Created: 08/30/2022 07:27 AM
Updated: 10/09/2022 02:29 PM
Changes: 08/30/2022 07:27 AM (41), 10/09/2022 02:29 PM (11)
Complete: 🔍


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