The Events Manager WordPress plugin before 7.4.5 does not stop a ticket-update request from replacing the identifiers of the ticket it was authorized against, letting a user who can manage one event's tickets overwrite and reassign any ticket on the site to their own event.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
High
Admin 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