User with no permission to any of the Hosts can access and view host count & other statistics through System Information Widget in Global View Dashboard.

A non-admin user can change or remove important features within the Zabbix Agent application, thus impacting the integrity and availability of the application.

Zabbix allows to configure SMS notifications. AT command injection occurs on "Zabbix Server" because there is no validation of "Number" field on Web nor on Zabbix server side. Attacker can run test of SMS providing specially crafted phone number and execute additional AT commands on modem.

Setting SMS media allows to set GSM modem file. Later this file is used as Linux device. But due everything is a file for Linux, it is possible to set another file, e.g. log file and zabbix_server will try to communicate with it as modem. As a result, log file will be broken with AT commands and small part for log file content will be leaked to UI.

The front-end audit log allows viewing of unprotected plaintext passwords, where the passwords are displayed in plain text.