GHSA-cmg2-755q-2pj5: The SureMail – SMTP and Email Logs Plugin for WordPress is vulnerable to Unrestricted Upload of...

• Source: GitHub Global Advisories

The SureMail WordPress plugin versions up to 1.9.0 has an unrestricted file upload vulnerability allowing attackers to upload dangerous files.

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, t…