CVE-2026-16947 Server-side request forgery in Total processing card payments for WooCommerce

Critical 9.1 Published Updated

Unauthenticated attackers can exploit SSRF to steal payment gateway credentials and forge successful payment responses for arbitrary orders.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-16947?

CVE-2026-16947 is a critical server-side request forgery vulnerability in Unknown Total processing card payments for WooCommerce, published on 29 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Total processing card payments for WooCommerce WordPress plugin through 7.3 does not validate a user-supplied path before using it to build a server-side verification request, and does not verify the authenticity of the response, allowing unauthenticated attackers to redirect that request to an arbitrary host (disclosing the merchant's payment-gateway credentials) and to forge a success response that marks arbitrary WooCommerce orders as paid.

Weakness: CWE-918

Which versions are affected by CVE-2026-16947?

How do I fix CVE-2026-16947?

No fix has been published for CVE-2026-16947 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-16947 being exploited?

There is no known exploitation of CVE-2026-16947 in the wild and no public exploit code.

Sources

Also known as GHSA-675h-pw44-fcfq.

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