WP Mail Gateway
WP Mail Gateway has one disclosed vulnerability in the WordSec catalog, all reported in 2026; it is fixed as of August 2026. Their average CVSS score is 8.8, and the most serious one scores 8.8 out of 10. Severity breakdown: 0 critical and 1 high.
The most common weakness is Missing Authorization, behind 1 of the records (100%).
The one issue recorded for WP Mail Gateway has a vendor fix available, so running the current release closes it.
All of these findings were reported by Nabil Irawan. WP Mail Gateway is installed on roughly 60 WordPress sites, so each unpatched flaw has a wide blast radius. The current release is tested up to WordPress 5.4.21.
CVE-2026-6963WP Mail Gateway <= 1.8 - Missing Authorization to Authenticated (Subscriber+) SMTP Configuration Modification via 'wmg_save_provider_config' AJAX Action
Read the full analysisVulnerability Records

WP Mail Gateway
Author
Shaharia Azam
Currently there are lots of plugins available to integrate 3rd party email gateway provider in your WordPress site. It seems that for every provider you need to install different plugin. From that use case scenario, this WP Mail Gateway plugin can be your All in One email solutions for WordPress. With this one plugin, you can integrate tons of third party email service provider. WP Mail Gateway can be your complete email solution plugin for your WordPress website. Send mail via multiple email gateway provider from your WordPress. Supports various mail provider. i.e: Amazon SE, Mailgun, Mandrill, Mailjet, Postmark, Sendgrid, SendinBlue, SMTP etc. Currently we support the following email gateway provider. We are regularly updating the list. Supported Email Gateway Provider: Amazon SES Mailgun Mandrill Mailjet Postmark Sendgrid SendinBlue SMTP
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