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

5.4
Missing Authorization
CVE CVE-2023-40203
CVSS 5.4 (Medium)
Publicly Published August 11, 2023
Last Updated January 22, 2024
Researcher István Márton - Wordfence

Description

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.

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Vulnerability Details for MailChimp Forms by MailMunch

Software Type Plugin
Software Slug mailchimp-forms-by-mailmunch (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.1.5, or a newer patched version
Affected Version
  • <= 3.1.4
Patched Version
  • 3.1.5

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