PHP-Fusion homepage address Parameter XSS

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

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

if (description)
{
  script_id(15392);
  script_version("1.20");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/11");

  script_name(english:"PHP-Fusion homepage address Parameter XSS");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server hosts a PHP script that is prone to
cross-site scripting attacks.");
  script_set_attribute(attribute:"description", value:
"A vulnerability exists in the version of PHP-Fusion installed on the
remote host that could allow an attacker to perform a cross-site
scripting attack and execute arbitrary HTML and script code in the
context of the user's browser.");
  script_set_attribute(attribute:"solution", value:
"Apply the patch for 4.01.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  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:"2004/09/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/09/29");

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

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

  script_copyright(english:"This script is Copyright (C) 2004-2022 Tenable Network Security, Inc.");

  script_dependencies("php_fusion_detect.nasl");
  script_require_keys("www/PHP", "www/php_fusion");
  script_exclude_keys("Settings/disable_cgi_scanning");
  script_require_ports("Services/www", 80);

  exit(0);
}

#
# The script code starts here
#

include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("webapp_func.inc");
include("audit.inc");

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

install = get_install_from_kb(
  appname      : "php_fusion",
  port         : port,
  exit_on_fail : TRUE
);
dir = install["dir"];
version = install["ver"];

if (ereg(pattern:"^([0-3][.,]|4[.,]0[01]([^0-9]|$))", string:version))
{
  security_warning(port);
  set_kb_item(name: 'www/'+port+'/XSS', value: TRUE);
  exit(0);
}
else audit(AUDIT_WEB_APP_NOT_AFFECTED, "PHP-Fusion", build_url(qs:dir, port:port), version);