The WP-DBManager (aka Database Manager) plugin before 2.7.2 for WordPress allows remote authenticated users to execute arbitrary commands via shell metacharacters in the (1) $backup['filepath'] (aka "Path to Backup:" field) or (2) $backup['mysqldumppath'] variable.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-8334
• https://exchange.xforce.ibmcloud.com/vulnerabilities/97689
• https://wordpress.org/plugins/wp-dbmanager/changelog/
• http://osvdb.org/show/osvdb/113508
• http://packetstormsecurity.com/files/128785/WordPress-Database-Manager-2.7.1-Command-Injection-Credential-Leak.html
• http://seclists.org/fulldisclosure/2014/Oct/99
• http://seclists.org/oss-sec/2014/q4/365
• http://seclists.org/oss-sec/2014/q4/410
• http://www.securityfocus.com/archive/1/533763/100/0/threaded
• http://www.securityfocus.com/bid/70626
• http://www.vapid.dhs.org/advisories/wordpress/plugins/wp-dbmanager-2.7.1/index.html