EUVD-2026-81386
GHSA-x78w-xrx4-7hrf
Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Network-reachable and unauthenticated (AV:N/PR:N/UI:N); AC:H because the non-default deferred-payment feature must be enabled; integrity-only order forgery (I:L), no confidentiality or availability impact.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
5DescriptionCVE.org
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.
AnalysisAI
Forged payment notifications against the Robokassa payment gateway for WooCommerce (all versions before 1.8.9) let unauthenticated remote attackers mark arbitrary WooCommerce orders as paid or on-hold without a real payment or a valid Robokassa signature. The flaw is only reachable when the plugin's non-default deferred-payment feature is explicitly enabled; default installations do not expose the vulnerable notification path. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitable ONLY when the plugin's non-default 'deferred-payment' feature is explicitly enabled; on default configurations the vulnerable notification path is not reachable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuinely low-priority issue despite being a signature/authentication-verification bypass. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: 1.8.9 - upgrading the Robokassa payment gateway for WooCommerce to 1.8.9 or later restores signature verification on the notification handler and is the primary fix; administrators should update via the WordPress plugin dashboard or WPScan-referenced release and confirm the installed version afterwards (advisory: https://wpscan.com/vulnerability/1aeef0b4-9b14-4b03-b7f6-a05937622023/). … Detailed patch versions, workarounds, and compensating controls in full report. |
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