The WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in versions up to and including 1.10.0.1. This is due to the PayPal Commerce webhook endpoint processing unauthenticated JSON webhook payloads without verifying that the request originated from PayPal using the required HMAC-SHA256 webhook signature, and only checking whether the supplied event_type is whitelisted before dispatching the attacker-controlled resource data to handlers that update payment records. This makes it possible for unauthenticated attackers who know a valid PayPal subscription_id to forge PayPal webhook events and modify subscription payment records, such as reactivating a cancelled or suspended subscription by setting its subscription_status to active.
References
Link Providers
https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L122 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L170 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionActivated.php#L38 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionCancelled.php#L32 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L122 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L170 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionActivated.php#L38 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionCancelled.php#L32 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L122 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L170 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionActivated.php#L38 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionCancelled.php#L32 cve-icon cve-icon
https://plugins.trac.wordpress.org/changeset/3532389/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/WebhookRoute.php?old=3486451&old_path=wpforms-lite%2Ftrunk%2Fsrc%2FIntegrations%2FPayPalCommerce%2FApi%2FWebhookRoute.php cve-icon cve-icon
https://www.wordfence.com/threat-intel/vulnerabilities/id/d5cf5fd2-58c7-42d0-948f-95764647630b?source=cve cve-icon cve-icon
History

Sat, 06 Jun 2026 03:30:00 +0000

Type Values Removed Values Added
Description The WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More plugin for WordPress is vulnerable to Insufficient Verification of Data Authenticity in versions up to and including 1.10.0.1. This is due to the PayPal Commerce webhook endpoint processing unauthenticated JSON webhook payloads without verifying that the request originated from PayPal using the required HMAC-SHA256 webhook signature, and only checking whether the supplied event_type is whitelisted before dispatching the attacker-controlled resource data to handlers that update payment records. This makes it possible for unauthenticated attackers who know a valid PayPal subscription_id to forge PayPal webhook events and modify subscription payment records, such as reactivating a cancelled or suspended subscription by setting its subscription_status to active.
Title WPForms <= 1.10.0.4 - Unauthenticated Insufficient Verification of Data Authenticity via PayPal Commerce Webhook Endpoint
Weaknesses CWE-345
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-06-06T02:28:37.577Z

Reserved: 2026-05-04T18:59:37.133Z

Link: CVE-2026-7792

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-06T04:17:40.683

Modified: 2026-06-06T04:17:40.683

Link: CVE-2026-7792

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-06T05:00:14Z