FreePBX is an open-source web-based graphical user interface. FreePBX 15, 16, and 17 endpoints are vulnerable due to insufficiently sanitized user-supplied data allowing unauthenticated access to FreePBX Administrator leading to arbitrary database manipulation and remote code execution. This issue has been patched in endpoint versions 15.0.66, 16.0.89, and 17.0.3.
OSS Endpoint Manager is an endpoint manager module for FreePBX. OSS Endpoint Manager module activation can allow authenticated web users unauthorized access to read system files with the permissions of the webserver process. This vulnerability is fixed in 14.0.4.