CVE-2026-12901 GetPaid < 2.8.55 - Unauthenticated Worldpay Payment Bypass via Insufficient IPN Verification

Medium 5.9 Published Updated

Unauthenticated attackers can forge Worldpay payment notifications to mark invoices as paid without actual payment, affecting GetPaid plugin users.

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-2026-12901?

CVE-2026-12901 is a medium-severity vulnerability in Unknown GetPaid, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The GetPaid WordPress plugin before 2.8.55 does not verify the authenticity of incoming Worldpay payment notifications, allowing unauthenticated attackers to forge a notification that marks a pending invoice as paid without any payment being made.

Weakness: CWE-345

Which versions are affected by CVE-2026-12901?

How do I fix CVE-2026-12901?

No fix has been published for CVE-2026-12901 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-12901 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-12901 exists.

Sources

Also known as GHSA-w426-cmgx-r837.

Is CVE-2026-12901 in your software?

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