What this plugin does

• Slug: suremails
• Author: Brainstorm Force
• 200000+ active installs
• 96/100 rating (23 reviews on wordpress.org)
• 1576343 all-time downloads
• On WordPress.org since 2025-01-22

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Maintenance status

• Last updated: 2026-07-14 5:23am 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 SureMail. Reported between 2025 and 2025.

CVE-2025-13516

The SureMail – SMTP and Email Logs Plugin for WordPress is vulnerable to Unrestricted Upload of File with Dangerous Type in versions up to and including 1.9.0. This is due to the plugin's save_file() function in inc/emails/handler/uploads.php which duplicates all email attachments to a web-accessible directory (wp-content/uploads/suremails/attachments/) without validating file extensions or content types. Files are saved with predictable names derived from MD5 hashes of their content. While the plugin attempts to protect this directory with an Apache .htaccess file to disable PHP execution, this protection is ineffective on nginx, IIS, and Lighttpd servers, or on misconfigured Apache installations. This makes it possible for unauthenticated attackers to achieve Remote Code Execution by uploading malicious PHP files through any public form that emails attachments, calculating the predictable filename, and directly accessing the file to execute arbitrary code granted they are exploiting a site running on an affected web server configuration.

Source: CVE.org

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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