CVE-2026-7792
Vulnérabilité moyenne dans WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More (smub)
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.
Gravité et risque d'exploitation
CVE-2026-7792 obtient un score CVSS de 5.3/10, soit une gravité moyenne. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.30 %, ce qui la place devant 20.9 % des CVE référencées.
Que faire ?
- Vérifiez si WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More (versions <=1.10.0.4, 0) est présent sur votre parc.
- Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
- À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
- Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.
Références
- https://www.wordfence.com/threat-intel/vulnerabilities/id/d5cf5fd2-58c7-42d0-948f-95764647630b?source=cve
- https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L122
- https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L170
- https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L170
- https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L122
- https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionActivated.php#L38
- https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionActivated.php#L38
- https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionCancelled.php#L32
- https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionCancelled.php#L32
- https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L170
- https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L122
- https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionActivated.php#L38
- https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionCancelled.php#L32
- 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
