turboSMTP

turboSMTP has 2 disclosed vulnerabilities in the WordSec catalog, reported between 2024 and 2025; all 2 are fixed as of September 2026. Their average CVSS score is 6.1, and the most serious one scores 6.1 out of 10.

The most common weakness is Cross-Site Scripting, behind 2 of the records (100%).

Every one of the 2 issues recorded for turboSMTP has a vendor fix available, so running the current release closes all known holes.

2 independent researchers contributed these findings, one record each. turboSMTP is installed on roughly 400 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 7.0.4.

Strategic Overview

Avg CVSSMedium
6.1/ 10
Patch Coverage100%
Open

0

Fixed

2

Get automatic notifications for all turboSMTP vulnerabilities before they are exploited.

Highest severity on recordCVSS 6.1CVE-2025-22753

turboSMTP <= 4.6 - Reflected Cross-Site Scripting

Read the full analysis

Vulnerability Records

2 records
turboSMTP banner
Latestv4.9.8
4.1(9)
82/100
Last Updated
2026-07-27 (2mo ago)
Active Installs
400+
Downloads
16,253
Requires WP
6.0+
Requires PHP
0+
Tested up to
WP 7.0.4
Created
2014-07-14 (12y ago)

turboSMTP’s official plugin for WordPress is a professional tool that delivers and tracks your transactional emails in real time. It will improve the deliverability of the emails sent from your wordpress cms. Easy setup: our plugin is ready to be used! It doesn’t need advanced configuration. No special skills required: just fill in sender’s credentials and you’re done. Transactional emails: the turboSMTP plugin can be used to deliver all the outgoing emails of the website working on behalf of the wp_mail() function. In fact, once activated, it will be automatically set as default. You don’t have to set anything! This way you’ll be able to deliver the email confirmation of your subscription form, the system notification and so on… 100% compatible: turboSMTP plugin will take charge of important emails such as your WordPress system emails, Woocommerce plugin and security alert ones. Reports: your statistics are always under control thanks to the real time reports about clicks, opens, bounces and much more… Test email: you can check the service status at anytime thanks to the test email feature Whitelisted servers: the delivery of your emails is always fast and successful. Languages: the plugin is available in english and italian languages. Soon available the french and spanish ones.

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