The Events Made Easy WordPress plugin before 3.1.2 does not bind the payment authorization token to the payment record being charged, allowing unauthenticated attackers to pay a low amount for a cheap booking and have a separate, higher-priced booking marked as fully paid.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1