CVE-2026-6963 Missing authorization in WP Mail Gateway
Authenticated subscribers can modify SMTP settings to redirect password reset emails, enabling administrator account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6963?
CVE-2026-6963 is a high-severity missing authorization vulnerability in shahariaazam WP Mail Gateway, published on 2 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-862
Which versions are affected by CVE-2026-6963?
How do I fix CVE-2026-6963?
No fix has been published for CVE-2026-6963 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-6963 being exploited?
There is no known exploitation of CVE-2026-6963 in the wild and no public exploit code.
Sources
Also known as GHSA-vqw4-hc5h-3hjf.