Description
WordPress Plugin Import any XML or CSV File to WordPress Pro is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to properly sanitize user-supplied input. An attacker can exploit this vulnerability to upload arbitrary code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible. WordPress Plugin Import any XML or CSV File to WordPress Pro version 4.1.0 is vulnerable; prior versions are also affected.
Remediation
Update to plugin version 4.1.1 or latest
References
http://www.pritect.net/blog/wp-all-import-3-2-3-pro-4-0-3-vulnerability-breakdown
http://packetstormsecurity.com/files/130596/WordPress-WP-All-3.2.3-Shell-Upload.html
http://www.wpallimport.com/2015/02/wp-import-4-1-1-mandatory-security-update/