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PLUGIN SECURITY

Is WP Mail SMTP Pro safe?

Make email delivery easy for WordPress. Connect with SMTP, Gmail, Outlook, SendGrid, Mailgun, SES, Zoho, + more. Rated #1 WordPress SMTP Email plugin.

What this plugin does

  • Slug: wp-mail-smtp-pro
  • Author: Syed Balkhi
  • 4000000+ active installs
  • 96/100 rating (5157 reviews on wordpress.org)
  • 82572005 all-time downloads
  • On WordPress.org since 2007-09-12

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Maintenance status

  • Last updated: 2026-06-25 8:50am GMT
  • Tested up to WordPress: 7.0.2
  • Requires PHP: 7.4+
  • Max supported PHP (analyzed): 8.4

Known vulnerabilities

1 known CVE on file for WP Mail SMTP Pro. Reported between 2023 and 2023.

CVE Vulnerability Type Severity Affected Fixed in Published Status
CVE-2023-3213 WP Mail SMTP Pro [wp-mail-smtp-pro] < 3.8.1 Missing Authorization Medium 5.3 < 3.8.1 3.8.1 2023-10-03

CVE-2023-3213

Update the WordPress WP Mail SMTP Pro plugin to the latest available version (at least 3.8.1). Alex Thomas discovered and reported this Broken Access Control vulnerability in WordPress WP Mail SMTP Pro Plugin. A broken access control issue refers to a missing authorization, authentication or nonce token check in a function that could lead to an unprivileged user to executing a certain higher privileged action. This vulnerability has been fixed in version 3.8.1.

Source: Patchstack

How to fix it

Update this plugin to the latest release from wordpress.org — each CVE above lists the exact release that fixed it ("Fixed in") when one is on file.

This is the plugin's full known vulnerability history, not a scan of any specific installation — run a free scan of your own site to check your exact installed version.

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