Unrestricted file upload vulnerability in upload_pictures.php in WebXell Editor 0.1.3 allows remote attackers to execute arbitrary code by uploading a .php file with a jpeg content type, then accessing it via a direct request to the file in upload/.
https://www.exploit-db.com/exploits/6015
https://exchange.xforce.ibmcloud.com/vulnerabilities/43596
http://www.vupen.com/english/advisories/2008/2016/references
http://www.securityfocus.com/bid/30117