CVE-2026-91017

Robokassa payment gateway for Woocommerce < 1.8.9 - Unauthenticated Payment Bypass via Forged JWT Callback

The Robokassa payment gateway for Woocommerce WordPress plugin before 1.8.9 does not verify the authenticity of incoming payment notifications when its non-default deferred-payment feature is enabled, allowing unauthenticated attackers to forge a notification and mark arbitrary WooCommerce orders as paid or on-hold without payment or a valid signature.

Affected

Robokassa payment gateway for Woocommerce

CVSS v3.1 WPSCAN

3.7 LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS

0.14% chance of exploitation in the next 30 days, 3rd percentile

Published

2026-09-17

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/1aeef0b4-9b14-4b03-b7f6-a05937622023/

References

• CVE Record
• NVD entry