CVE-2026-7792: CWE-345 Insufficient Verification of Data Authenticity in smub WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More
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.
AI Analysis
Technical Summary
CVE-2026-7792 is a vulnerability in the WPForms – Easy Form Builder for WordPress plugin affecting versions up to 1.10.0.1. The issue arises because the PayPal Commerce webhook endpoint does not verify the authenticity of incoming webhook requests using the required HMAC-SHA256 signature. Instead, it only checks if the event_type is whitelisted before processing the data. This allows unauthenticated attackers who know a valid PayPal subscription_id to forge webhook events and manipulate subscription payment records, including reactivating subscriptions that were cancelled or suspended. The vulnerability is classified under CWE-345 (Insufficient Verification of Data Authenticity) and has a CVSS 3.1 base score of 5.3 (medium severity). No patch or official fix has been documented yet.
Potential Impact
An attacker can forge PayPal webhook events to modify subscription payment records without authentication. This can lead to unauthorized reactivation of cancelled or suspended subscriptions, potentially causing financial or service access impacts. There is no impact on confidentiality or availability reported. No known exploits are currently observed in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider disabling the PayPal Commerce webhook integration or implementing additional network-level protections to restrict webhook access. Monitoring for unusual subscription status changes may help detect exploitation attempts.
CVE-2026-7792: CWE-345 Insufficient Verification of Data Authenticity in smub WPForms – Easy Form Builder for WordPress – Contact Forms, Payment Forms, Surveys, & More
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.
CVSS v3.1
Score 5.3medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-7792 is a vulnerability in the WPForms – Easy Form Builder for WordPress plugin affecting versions up to 1.10.0.1. The issue arises because the PayPal Commerce webhook endpoint does not verify the authenticity of incoming webhook requests using the required HMAC-SHA256 signature. Instead, it only checks if the event_type is whitelisted before processing the data. This allows unauthenticated attackers who know a valid PayPal subscription_id to forge webhook events and manipulate subscription payment records, including reactivating subscriptions that were cancelled or suspended. The vulnerability is classified under CWE-345 (Insufficient Verification of Data Authenticity) and has a CVSS 3.1 base score of 5.3 (medium severity). No patch or official fix has been documented yet.
Potential Impact
An attacker can forge PayPal webhook events to modify subscription payment records without authentication. This can lead to unauthorized reactivation of cancelled or suspended subscriptions, potentially causing financial or service access impacts. There is no impact on confidentiality or availability reported. No known exploits are currently observed in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider disabling the PayPal Commerce webhook integration or implementing additional network-level protections to restrict webhook access. Monitoring for unusual subscription status changes may help detect exploitation attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-05-04T18:59:37.133Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a23950fe29bf47b5005f827
Added to database: 6/6/2026, 3:33:35 AM
Last enriched: 6/6/2026, 3:48:58 AM
Last updated: 6/7/2026, 4:26:09 AM
Views: 11
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