PostNuke News Module article.php sid Parameter XSS

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(14727);
  script_version("1.24");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/05/14");
  script_bugtraq_id(5809);

  script_name(english:"PostNuke News Module article.php sid Parameter XSS");

  script_set_attribute(attribute:"synopsis", value:
"A remote web application is vulnerable to cross-site scripting.");
  script_set_attribute(attribute:"description", value:
"The remote host is running a version of PostNuke which contains the 
'News' module which itself is vulnerable to a cross-site scripting issue.

An attacker may use these flaws to steal the cookies of the legitimate 
users of this website.");
  script_set_attribute(attribute:"solution", value:
"Upgrade to the latest version of postnuke");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");

  script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);

  script_set_attribute(attribute:"vuln_publication_date", value:"2002/11/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/15");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:postnuke_software_foundation:postnuke");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses : XSS");

  script_copyright(english:"This script is Copyright (C) 2004-2025 Tenable Network Security, Inc.");

  script_dependencies("postnuke_detect.nasl", "cross_site_scripting.nasl");
  script_require_keys("www/postnuke");
  script_require_ports("Services/www", 80);

  exit(0);
}


include("http_func.inc");
include("global_settings.inc");
include("http_keepalive.inc");


port = get_http_port(default:80, embedded:TRUE);

if(!get_port_state(port))exit(0);
if(get_kb_item(string("www/", port, "/generic_xss"))) exit(0);
if(!can_host_php(port:port))exit(0);

kb = get_kb_item("www/" + port + "/postnuke" );
if ( ! kb ) exit(0);
stuff = eregmatch(pattern:"(.*) under (.*)", string:kb );
dir = stuff[2];


req = http_get(item:string(dir, "/modules.php?op=modload&name=News&file=article&sid=<script>foo</script>"), port:port);
res = http_keepalive_send_recv(port:port, data:req, bodyonly:TRUE);
if(res == NULL ) exit(0);
 
if("<script>foo</script>" >< res)
{
 security_warning(port);
 set_kb_item(name: 'www/'+port+'/XSS', value: TRUE);
}