Directory traversal vulnerability in update/index.php in PluXml before 5.1.6 allows remote attackers to include and execute arbitrary local files via a ..%2F (encoded dot dot slash) in the default_lang parameter.
https://www.htbridge.com/advisory/HTB23086
https://exchange.xforce.ibmcloud.com/vulnerabilities/75330
http://www.securityfocus.com/bid/53348
http://www.pluxml.org/article59/sortie-de-pluxml-5-1-6
http://telechargements.pluxml.org/changelog
http://secunia.com/advisories/49026
http://archives.neohapsis.com/archives/bugtraq/2012-05/0011.html