Watchguard XCS 9.2 and 10.0 before build 150522 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the id parameter to ADMIN/mailqueue.spl.
https://www.exploit-db.com/exploits/38346/
https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-5409
http://www.securityfocus.com/bid/75516
http://www.security-assessment.com/files/documents/advisory/Watchguard-XCS-final.pdf
http://packetstormsecurity.com/files/133721/Watchguard-XCS-Remote-Command-Execution.html
http://packetstormsecurity.com/files/132498/Watchguard-XCS-10.0-SQL-Injection-Command-Execution.html