PLUGIN SECURITY
Is WP Mail SMTP safe?
Make email delivery easy for WordPress. Connect with SMTP, Gmail, Brevo, SendGrid, Amazon SES + more, with powerful WordPress SMTP Email plugin.
What this plugin does
- Slug:
wp-mail-smtp - Author: Syed Balkhi
- 4000000+ active installs
- 96/100 rating (5206 reviews on wordpress.org)
- 89940711 all-time downloads
- On WordPress.org since 2007-09-12
brevoemailgmailoutlooksmtp
Maintenance status
- Latest known version: 4.9.0
- Last updated: 2026-10-20 2:29pm GMT
- Tested up to WordPress: 7.1.3
- Requires PHP: 7.4+
- Max supported PHP (analyzed): 8.4
Known vulnerabilities
1 known CVE on file for WP Mail SMTP. Reported between 2018 and 2024.
| CVE | Vulnerability | Type | Severity | Affected | Fixed in | Published | Status |
|---|---|---|---|---|---|---|---|
| CVE-2024-6694 | WP Mail SMTP by WPForms – SMTP for Reliable Email Delivery with Gmail, Outlook, Amazon SES, Brevo, Other SMTP & More [wp-mail-smtp] < 4.1.0 | Storing Passwords in a Recoverable Format | Low 2.7 | < 4.1.0 | 4.1.0 | 2024-07-19 | ✓ fixed in latest |
| — | WP Mail SMTP by WPForms – SMTP for Reliable Email Delivery with Gmail, Outlook, Amazon SES, Brevo, Other SMTP & More [wp-mail-smtp] < 1.4.0 | — | Unknown | < 1.4.0 | 1.4.0 | 2018-12-07 | ✓ fixed in latest |
| — | WP Mail SMTP by WPForms – SMTP for Reliable Email Delivery with Gmail, Outlook, Amazon SES, Brevo, Other SMTP & More [wp-mail-smtp] < 1.4.0 | — | Unknown | < 1.4.0 | 1.4.0 | 2018-09-19 | ✓ fixed in latest |
| — | WP Mail SMTP by WPForms – SMTP for Reliable Email Delivery with Gmail, Outlook, Amazon SES, Brevo, Other SMTP & More [wp-mail-smtp] < 1.4.0 | — | Unknown | < 1.4.0 | 1.4.0 | — | ✓ fixed in latest |
| — | WP Mail SMTP by WPForms < 1.4.0 - Authenticated Stored Cross-Site Scripting (XSS) | — | Unknown | < 1.4.0 | 1.4.0 | — | ✓ fixed in latest |
How to fix it
Keep WP Mail SMTP updated — 4.9.0 is the latest version on wordpress.org, and each CVE above lists the exact release that fixed it ("Fixed in").
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.
Safer / more established alternatives
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- WP Mail Logging — 300000+ active installs — 94/100 (374) — max PHP 8.4
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- Email Deliverability – SMTP Replacement, Email API Deliverability & Email Log — 200000+ active installs — 50/100 (17)
Check your own WordPress site
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