include/class_poll.php in Advanced Poll 2.0.4 uses the HTTP_X_FORWARDED_FOR (X-Forwarded-For HTTP header) to identify the IP address of a client, which makes it easier for remote attackers to spoof the source IP and bypass voting restrictions.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 69.6%