PHP remote file inclusion vulnerability in upgrade.php in Coalescent Systems freePBX 2.1.3 allows remote attackers to execute arbitrary PHP code via a URL in the amp_conf[AMPWEBROOT] parameter.
Coalescent Systems freePBX (formerly Asterisk Management Portal) before 2.2.0rc1 allows attackers to execute arbitrary commands via shell metacharacters in (1) CALLERID(name) or (2) CALLERID(number).