The WP Real IP-based Access Control WordPress plugin through 1.3.1 does not perform any capability or nonce checks before storing one of its option values, and does not escape that value on output on its settings page, allowing unauthenticated users to store arbitrary JavaScript that executes in the context of any administrator who views the page.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1