The WPForms WordPress plugin before 2.0.2 does not verify that a Stripe payment object supplied during a public form submission belongs to it before acting on it, allowing unauthenticated users to trigger a full refund and an immediate subscription cancellation against payments created by other applications on the site owner's Stripe account.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v3.1