WordPress WP Mail Gateway plugin <= 1.8 - Missing Authorization to Authenticated (Subscriber+) SMTP Configuration Modification vulnerability

Missing Authorization to Authenticated Subscriber+ SMTP Configuration Modification vulnerability discovered by Nabil Irawan - Heroes Cyber Security in WordPress Plugin WP Mail Gateway versions = 1.8...

CVE-2026-6963

The WP Mail Gateway plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the wmgsaveproviderconfig AJAX action in all versions up to, and including, 1.8. This makes it possible for authenticated attackers, with Subscriber-level access and above, to update...