Description
WordPress Plugin WP Mobile Detector is prone to a vulnerability that lets attackers upload arbitrary files because the application fails to properly verify 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 WP Mobile Detector version 3.5 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 3.6 or latest
References
https://blog.sucuri.net/2016/06/wp-mobile-detector-vulnerability-being-exploited-in-the-wild.html
https://www.youtube.com/watch?v=ULE1AVWfHTU
https://www.exploit-db.com/exploits/39891/
https://packetstormsecurity.com/files/137342/WordPress-WP-Mobile-Detector-3.5-Shell-Upload.html
https://app.bugreplay.com/shared/report/4d616006-57a9-40df-a4d3-d7b9cb87dd8a#/view