Vaadin Framework 7.0.0 - 7.3.6 XSS Vulnerability

# SPDX-FileCopyrightText: 2015 SCHUTZWERK GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-or-later

CPE = "cpe:/a:vaadin:vaadin";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.105185");
  script_version("2026-06-10T06:59:19+0000");
  script_tag(name:"last_modification", value:"2026-06-10 06:59:19 +0000 (Wed, 10 Jun 2026)");
  script_tag(name:"creation_date", value:"2015-01-22 12:00:00 +0100 (Thu, 22 Jan 2015)");
  script_tag(name:"cvss_base", value:"4.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:N/I:P/A:N");

  script_tag(name:"qod_type", value:"remote_banner");

  script_tag(name:"solution_type", value:"VendorFix");

  script_name("Vaadin Framework 7.0.0 - 7.3.6 XSS Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2015 SCHUTZWERK GmbH");
  script_family("Web application abuses");
  script_dependencies("sw_vaadin_http_detect.nasl");
  script_mandatory_keys("vaadin/detected");

  script_tag(name:"summary", value:"Vaadin Framework is prone to a cross-site scripting (XSS)
  vulnerability because the application fails to properly sanitize user-supplied input.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");

  script_tag(name:"insight", value:"This flaw exists due to proper escaping of HTML in portlet
  error message was not ensured.");

  script_tag(name:"impact", value:"This could allow a reflected cross-site scripting attack through
  VaadinPortlet by making the user load a URL designed to include an error message crafted by the
  attacker.");

  script_tag(name:"affected", value:"Vaadin Framework version 7.0.0 through 7.3.6.");

  script_tag(name:"solution", value:"Update to version 7.3.7 or later.");

  script_xref(name:"URL", value:"http://www.vaadin.com/download/release/7.3/7.3.7/release-notes.html");

  exit(0);
}

include("version_func.inc");
include("host_details.inc");

if( ! port = get_app_port( cpe:CPE ) )
  exit( 0 );

if( ! infos = get_app_version_and_location( cpe:CPE, port:port, exit_no_version:TRUE ) )
  exit( 0 );

version = infos["version"];
location = infos["location"];

if( version_in_range( version:version, test_version:"7.0.0", test_version2:"7.3.6" ) ) {
  report = report_fixed_ver( installed_version:version, fixed_version:"7.3.7", install_path:location );
  security_message( port:port, data:report );
  exit( 0 );
}

exit( 99 );