FusionPBX through 5.6.5 contains an OS command injection vulnerability in callrecordings::download() that allows unauthenticated attackers to execute commands by placing calls with malicious caller ID values. When the recordname filename template is enabled, attackers can embed shell metacharacters like $(...) in the Caller-ID name or number, executing commands as the web server user once a privileged user downloads multiple recordings as a ZIP.

FusionPBX prior to 5.1.0 contains a cross-site scripting vulnerability. If this vulnerability is exploited by a remote authenticated attacker with an administrative privilege, an arbitrary script may be executed on the web browser of the user who is logging in to the product.