courier/1000@/api_error_email.html (aka "error reporting page") in Accellion File Transfer Appliance FTA_7_0_178, and possibly other versions before FTA_7_0_189, allows remote attackers to send spam e-mail via modified description and client_email parameters.
https://exchange.xforce.ibmcloud.com/vulnerabilities/45159
http://www.securitytracker.com/id?1020870