Directory traversal vulnerability in help.php in the eskuel module in KwsPHP 1.3.456, as available before 20080416, allows remote attackers to execute arbitrary commands via the action parameter. NOTE: some of these details are obtained from third party information.
https://www.exploit-db.com/exploits/5449
https://exchange.xforce.ibmcloud.com/vulnerabilities/41950
http://www.vupen.com/english/advisories/2008/1241/references
http://www.securityfocus.com/bid/28788
http://www.securityfocus.com/archive/1/490861
http://secunia.com/advisories/29802
http://koogar.alorys-hebergement.com/kwsphp/index.php?mod=news&ac=commentaires&id=49