CVE-2026-110285 WP Stripe Checkout CVE debrief

Who should care

Defenders responsible for WordPress installations with the WP Stripe Checkout plugin should assess exposure and verify the plugin's configuration to prevent unauthorized payment completion notifications.

Why it matters

The WP Stripe Checkout plugin vulnerability allows unauthenticated attackers to forge payment completion notifications, potentially leading to financial losses. Defenders should prioritize verifying the plugin's configuration and reviewing the plugin's documentation for guidance on setting up a signing secret.

• Defenders should verify the configuration of the WP Stripe Checkout plugin to prevent unauthorized payment completion notifications.
• Defenders should review the plugin's documentation for guidance on setting up a signing secret to prevent unauthorized payment completion notifications.
• Defenders should prioritize verifying the configuration of the WP Stripe Checkout plugin to prevent potential financial losses.

Technical summary

The WP Stripe Checkout WordPress plugin before 1.2.2.62 does not verify the Stripe webhook signature when no signing secret is configured, allowing unauthenticated attackers to forge a payment completion notification and create a completed order without paying. This vulnerability is particularly concerning for WordPress installations that rely on the WP Stripe Checkout plugin for payment processing, as it could lead to unauthorized transactions. Defenders should prioritize verifying the plugin's configuration and ensuring that a signing secret is set to prevent such attacks.

Defensive priority

Defenders should prioritize verifying the configuration of the WP Stripe Checkout plugin and ensuring that a signing secret is set to prevent unauthorized payment completion notifications.

Recommended defensive actions

• Verify the configuration of the WP Stripe Checkout plugin
• Ensure that a signing secret is set to prevent unauthorized payment completion notifications
• Review the plugin's documentation for guidance on setting up a signing secret
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
• Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record and NVD entry provide limited information about the vulnerability, and defenders should verify the configuration of the WP Stripe Checkout plugin and review the plugin's documentation for guidance on setting up a signing secret.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.