Joomla < 3.8.12 ACL Violation Vulnerability

# SPDX-FileCopyrightText: 2018 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

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.112372");
  script_version("2026-04-30T06:27:06+0000");
  script_cve_id("CVE-2018-15881");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");
  script_tag(name:"last_modification", value:"2026-04-30 06:27:06 +0000 (Thu, 30 Apr 2026)");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-10-03 00:03:00 +0000 (Thu, 03 Oct 2019)");
  script_tag(name:"creation_date", value:"2018-08-30 10:12:03 +0200 (Thu, 30 Aug 2018)");

  script_name("Joomla < 3.8.12 ACL Violation Vulnerability");

  script_tag(name:"summary", value:"Joomla is prone to an ACL violation vulnerability in custom fields.");

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

  script_tag(name:"insight", value:"Inadequate checks regarding disabled fields can lead to an ACL violation.");

  script_tag(name:"affected", value:"Joomla versions 3.7.0 through 3.8.11.");

  script_tag(name:"solution", value:"Update to version 3.8.12 or later.");

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

  script_xref(name:"URL", value:"https://developer.joomla.org/security-centre/745-20180803-core-acl-violation-in-custom-fields.html");

  script_copyright("Copyright (C) 2018 Greenbone AG");
  script_category(ACT_GATHER_INFO);
  script_family("Web application abuses");
  script_dependencies("joomla_http_detect.nasl");
  script_mandatory_keys("joomla/detected");

  exit(0);
}

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

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

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);

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

if(version_in_range(version:vers, test_version:"3.7.0", test_version2:"3.8.11")) {
  report = report_fixed_ver(installed_version:vers, fixed_version:"3.8.12", install_path:path);
  security_message(port:port, data:report);
  exit(0);
}

exit(99);