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

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

References

1 affected software package

Software Type Plugin
Software Slug mailchimp-forms-by-mailmunch (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.1.4
Patched Version
  • 3.1.5
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