🔐 CVE Alert

CVE-2026-7792

MEDIUM 5.3

WPForms <= 1.10.0.4 - Unauthenticated Insufficient Verification of Data Authenticity via PayPal Commerce Webhook Endpoint

CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-345
Vendor smub
Product wpforms – easy form builder for wordpress – contact forms, payment forms, surveys, & more
Published Jun 6, 2026
Last Updated Jun 6, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

smub / WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More
0 ≤ 1.10.0.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/d5cf5fd2-58c7-42d0-948f-95764647630b?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L122 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L170 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L170 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L122 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionActivated.php#L38 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionActivated.php#L38 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/trunk/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionCancelled.php#L32 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.4/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionCancelled.php#L32 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L170 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/WebhookRoute.php#L122 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionActivated.php#L38 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/wpforms-lite/tags/1.10.0.1/src/Integrations/PayPalCommerce/Api/Webhooks/BillingSubscriptionCancelled.php#L32 plugins.trac.wordpress.org: 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

Credits

Vijay