[ic] PCI scan suddenly failing?

[DB]

Here's some more specific info on one of the failed items:

Evidence:
URL: http://www.domain.com/index.html
Parameter: id
Request: GET
/index.html?id=%3Cscript%3Ealert('TK00000008')%3C/script%3E
HTTP/1.1 Accept: */* User-Agent: Ruby, Mozilla/4.0 (compatible;
MSIE 6.0; Windows NT 5.1) Host: www.domain.com
Response: HTTP/1.1 403 Forbidden Set-Cookie: MV_SESSION_ID=;
path=/cgi-bin/store; Set-Cookie: MV_SESSION_ID=; path=/; Status:
403 Unauthorized Content-Type: text/plain Transfer-Encoding:
chunked Date: Thu, 27 Jun 2013 17:06:38 GMT Server:
lighttpd/1.4.31