WordPress Easy FancyBox < 1.8.18 Stored XSS Vulnerability

# Copyright (C) 2019 Greenbone Networks GmbH
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.113536");
  script_version("2022-11-10T10:12:04+0000");
  script_tag(name:"last_modification", value:"2022-11-10 10:12:04 +0000 (Thu, 10 Nov 2022)");
  script_tag(name:"creation_date", value:"2019-09-30 15:29:48 +0000 (Mon, 30 Sep 2019)");
  script_tag(name:"cvss_base", value:"3.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:N/I:P/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-10-01 14:05:00 +0000 (Tue, 01 Oct 2019)");

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

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

  script_cve_id("CVE-2019-16524");

  script_name("WordPress Easy FancyBox < 1.8.18 Stored XSS Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2019 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_wordpress_plugin_http_detect.nasl");
  script_mandatory_keys("wordpress/plugin/easy-fancybox/detected");

  script_tag(name:"summary", value:"The WordPress plugin 'Easy FancyBox' is prone to
  a stored cross-site scripting (XSS) vulnerability.");
  script_tag(name:"vuldetect", value:"Checks if a vulnerable version is present on the target host.");
  script_tag(name:"insight", value:"The vulnerability exists within the Settings Menu in inc/class-easyfancybox.php
  due to improper encoding of arbitrarily submitted settings parameters. This
  occurs because there is no inline styles output filter.");
  script_tag(name:"impact", value:"Successful exploitation would allow an authenticated attacker
  to inject arbitrary HTML and JavaScript into the site.");
  script_tag(name:"affected", value:"WordPress Easy FancyBox through version 1.8.17.");
  script_tag(name:"solution", value:"Update to version 1.8.18.");

  script_xref(name:"URL", value:"https://github.com/sbaresearch/advisories/tree/public/2019/SBA-ADV-20190911-01_Easy_FancyBox_WP_Plugin_Stored_XSS");
  script_xref(name:"URL", value:"https://wpvulndb.com/vulnerabilities/9891");
  script_xref(name:"URL", value:"https://wordpress.org/plugins/easy-fancybox/#developers");

  exit(0);
}

CPE = "cpe:/a:status301:easy_fancybox";

include("host_details.inc");
include("version_func.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_is_less( version: version, test_version: "1.8.18" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "1.8.18", install_path: location );
  security_message( data: report, port: port );
  exit( 0 );
}

exit( 99 );