httpd.c in httpd in the management GUI in DD-WRT 24 sp1, and other versions before build 12533, allows remote attackers to execute arbitrary commands via shell metacharacters in a request to a cgi-bin/ URI.

Multiple cross-site request forgery (CSRF) vulnerabilities in apply.cgi in DD-WRT 24 sp1 and earlier allow remote attackers to hijack the authentication of administrators for requests that (1) execute arbitrary commands via the pingip parameter; (2) change the administrative credentials via the httpusername and httppasswd parameters; (3) enable remote administration via the remotemanagement parameter; or (4) configure port forwarding via certain from, to, ip, and pro parameters.