MailChimp Forms by MailMunch <= 3.1.7 - Cross-Site Request Forgery via Multiple AJAX actions

5.4
Cross-Site Request Forgery (CSRF)
CVE CVE-2023-45748
CVSS 5.4 (Medium)
Publicly Published October 12, 2023
Last Updated January 22, 2024
Researcher Abdi Pranata

Description

The MailChimp Forms by MailMunch plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.1.7. This is due to missing nonce validation on several of the plugin's functions, such as delete_email(), delete_widget(), change_email_status(), and settings_page(). This makes it possible for unauthenticated attackers to delete widgets and change or delete arbitrary email subscriber records via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

References

Share

Vulnerability Details for Mailmunch Forms for Mailchimp

Software Type Plugin
Software Slug mailchimp-forms-by-mailmunch (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.1.8, or a newer patched version
Affected Version
  • <= 3.1.7
Patched Version
  • 3.1.8

Recent vulnerabilities in Mailmunch Forms for Mailchimp

# Title CVE ID CVSS Researchers Date
1 MailChimp Forms by MailMunch <= 3.2.7 - Missing Authorization to Authenticated (Subscriber+) MailMunch Integration Takeover via 'sign_in' AJAX Action CVE-2026-7520 8.1 t0ann9uy3n August 4, 2026
2 MailChimp Forms by MailMunch <= 3.2.3 - Reflected Cross-Site Scripting CVE-2024-8726 6.1 vgo0 November 19, 2024
3 MailChimp Forms by MailMunch <= 3.2.1 - Cross-Site Request Forgery CVE-2024-31378 4.3 Majed Refaea April 10, 2024
4 MailChimp Forms by MailMunch <= 3.2.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVE-2024-29793 6.4 Ngô Thiên An (ancorn_) March 25, 2024
5 MailChimp Forms by MailMunch <= 3.1.4 - Missing Authorization via multiple AJAX actions CVE-2023-40203 5.4 István Márton August 11, 2023

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation