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).

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.

A vulnerability was discovered in FreePBX 17.0.19.17. It does not verify the type of uploaded (valid FreePBX module) files, allowing high-privilege administrators to insert unwanted files. NOTE: the Supplier's position is that there is no risk beyond what high-privilege administrators are intentionally allowed to do.