An unauthenticated user can create a link with reflected Javascript code inside the backurl parameter and send it to other authenticated users in order to create a fake account with predefined login, password and role in Zabbix Frontend.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-agent" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-agent-dbgsym" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-agent2" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-agent2-dbgsym" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-frontend-php" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-java-gateway" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-proxy-mysql" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-proxy-mysql-dbgsym" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-proxy-pgsql" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-proxy-pgsql-dbgsym" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-proxy-sqlite3" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-proxy-sqlite3-dbgsym" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-server-mysql" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-server-mysql-dbgsym" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-server-pgsql" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-server-pgsql-dbgsym" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-web-service" }, { "binary_version": "1:6.0.29+dfsg-1", "binary_name": "zabbix-web-service-dbgsym" } ] }