PHP remote file inclusion vulnerability in send_reminders.php in WebCalendar 1.0.4 allows remote attackers to execute arbitrary PHP code via a URL in the includedir parameter and a 0 value for the noSet parameter, a different vector than CVE-2007-1483.
https://www.exploit-db.com/exploits/5847
https://exchange.xforce.ibmcloud.com/vulnerabilities/43156