MailChimp Forms by MailMunch <= 3.1.4 - Missing Authorization via multiple AJAX actions

2023-08-11 00:00

István Márton

Strategic Overview

Status

Patched in 3.1.5

Affected PluginMailmunch Forms for Mailchimp

Affected Version<= 3.1.4

CVSS5.4Medium

CVECVE-2023-40203

View all Mailmunch Forms for Mailchimp vulnerabilities

Vulnerability Overview

The MailChimp Forms by MailMunch plugin for WordPress is vulnerable to unauthorized modification of data and loss of data due to a missing capability check on the 'delete_widget', 'change_email_status', and 'delete_email' AJAX functions in versions up to, and including, 3.1.4. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete widgets and change or delete arbitrary email subscriber records.

Technical Analysis

REMEDIATION: Update to version 3.1.5, or a newer patched version --- IDENTIFIER: CWE-862 (Missing Authorization) The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

External References

https://www.cve.org/CVERecord?id=CVE-2023-40203 https://www.wordfence.com/threat-intel/vulnerabilities/id/18dd1b86-3206-4cd7-a20b-33240c139aa5

CVSS Vector

5.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityLow

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