WordPress TC Custom JavaScript Plugin < 1.2.2 XSS Vulnerability

# Copyright (C) 2020 Greenbone Networks 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
#
# 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("1.3.6.1.4.1.25623.1.0.112797");
  script_version("2023-01-20T10:11:50+0000");
  script_tag(name:"last_modification", value:"2023-01-20 10:11:50 +0000 (Fri, 20 Jan 2023)");
  script_tag(name:"creation_date", value:"2020-08-05 10:05:00 +0000 (Wed, 05 Aug 2020)");
  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:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-07-23 17:19:00 +0000 (Thu, 23 Jul 2020)");

  script_cve_id("CVE-2020-14063");

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

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

  script_name("WordPress TC Custom JavaScript Plugin < 1.2.2 XSS Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  script_family("Web application abuses");
  script_dependencies("gb_wordpress_plugin_http_detect.nasl");
  script_mandatory_keys("wordpress/plugin/tc-custom-javascript/detected");

  script_tag(name:"summary", value:"The WordPress plugin 'TC Custom JavaScript' is prone to a
  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:"An attacker could send a POST request to any location on a
  vulnerable site with the tccj-update parameter set to Update and the tccj-content parameter set to
  malicious JavaScript, and this JavaScript would display in the footer of every page on the site.");

  script_tag(name:"impact", value:"Successful exploitation would allow an attacker to redirect
  visitors to malvertising sites or steal payment information. Even worse, it is possible for the
  attacker to detect when an administrator visits the site and send a request on their behalf to
  infect files with a backdoor or possibly create a new, malicious administrator user account leading
  to takeover of the entire site.");

  script_tag(name:"affected", value:"WordPress TC Custom JavaScript plugin before version 1.2.2.");

  script_tag(name:"solution", value:"Update to version 1.2.2 or later.");

  script_xref(name:"URL", value:"https://wordpress.org/plugins/tc-custom-javascript/#developers");
  script_xref(name:"URL", value:"https://www.wordfence.com/blog/2020/07/high-severity-vulnerability-patched-in-tc-custom-javascript/");

  exit(0);
}

CPE = "cpe:/a:tc_custom_javascript_project:tc_custom_javascript";

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: FALSE ) )
  exit( 0 );

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

if( version_is_less( version: version, test_version: "1.2.2" ) ) {
  report = report_fixed_ver( installed_version: version, fixed_version: "1.2.2", install_path: location );
  security_message( port: port, data: report );
  exit( 0 );
}

exit( 99 );