The WP Mail Gateway plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the wmg_save_provider_config 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 SMTP settings and redirect mail which can be used for privilege escalation by triggering a password reset email and using that to access and administrator's account.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Wp Mail Gateway Plugin | — | Update wp-mail-gateway plugin to version 1.8.1, or a newer patched version | May 4, 2026 | May 1, 2026 |
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