The host is running PmWiki and is prone to cross-site scripting vulnerability.
Successful exploitation will allow attackers to execute arbitrary web script or HTML in a user's browser session in the context of an affected site. Impact Level: Application
Upgrade to the latest version of 2.2.16 or later, For updates refer to http://pmwiki.org/pub/pmwiki
The flaw is caused by improper validation of user-supplied input via the 'width' markup while creating a table.
PmWiki Version 2.2.15 and Prior.