[ CVE-2026-91076 · Published 14 Oct 2026 ]
Vulnerability in Unknown Robokassa payment gateway for Woocommerce
CVSS 5.3
EPSS <1%No fix listed yet
[ Description ]Official description
The Robokassa payment gateway for Woocommerce WordPress plugin before 1.9.0 does not verify the authenticity of an incoming payment-notification request before acting on the order named in it, allowing unauthenticated attackers to force any WooCommerce order into a failed state. Order identifiers are sequential, so every order in the shop can be taken out of the fulfilment queue one request at a time.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.