WP HTML Mail <= 3.4.0 - Cross-Site Request Forgery via 'send_test'

4.3
Cross-Site Request Forgery (CSRF)
CVE CVE-2023-40202
CVSS 4.3 (Medium)
Publicly Published August 11, 2023
Last Updated January 22, 2024
Researcher István Márton - Wordfence

Description

The WP HTML Mail plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.4.0. This is due to missing or incorrect nonce validation on the 'send_test' function. This makes it possible for unauthenticated attackers to send test emails via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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Vulnerability Details for Email Template Designer – WP HTML Mail

Software Type Plugin
Software Slug wp-html-mail (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.4.1, or a newer patched version
Affected Version
  • <= 3.4.0
Patched Version
  • 3.4.1

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