Is CVE-2026-92400 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-92400 being exploited in the wild.

How severe is CVE-2026-92400?

Medium severity, with a CVSS score of 5.3, published 21 September 2026.

Which products and versions are affected?

WooCommerce Payment Gateway for PayPal before 9.2.1.

Is there a fix for CVE-2026-92400?

A patch was published on 2026-09-21: Version 9.2.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-92400 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-92400?

Check whether you run WooCommerce Payment Gateway for PayPal at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-92400: Payment Gateway for PayPal on WooCommerce payment verification bypass

CVE-2026-92400 · Severity: medium · CVSS 5.3 · Published 2026-09-21

The Payment Gateway for PayPal plugin for WooCommerce fails to verify that incoming payment notifications come from PayPal's production environment and are intended for the store's own merchant account. An attacker can forge payment notifications using their own PayPal sandbox account to trick the store into marking orders as paid without genuine payment, leading to loss of revenue and inventory.

Vendors: WooCommerce.

Quick answers

Is CVE-2026-92400 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-92400 being exploited in the wild.
How severe is CVE-2026-92400?: Medium severity, with a CVSS score of 5.3, published 21 September 2026.
Which products and versions are affected?: WooCommerce Payment Gateway for PayPal before 9.2.1.
Is there a fix for CVE-2026-92400?: A patch was published on 2026-09-21: Version 9.2.1 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-92400 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-92400?: Check whether you run WooCommerce Payment Gateway for PayPal at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The plugin does not validate the payment environment source or merchant account ID when processing IPN (Instant Payment Notification) callbacks from PayPal, allowing unauthenticated attackers to submit crafted notifications that mark orders complete. An attacker with a personal PayPal sandbox account can generate legitimate sandbox transactions and replay them to the vulnerable store. The vulnerability was fixed in version 9.2.1.

Affected products

WooCommerce Payment Gateway for PayPal before 9.2.1

Timeline

2026-09-17: disclosed
2026-09-21: patched: Version 9.2.1 released

References

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