OpenEMR 2.7.3-rc1 < 6.0.0.1 XSS Vulnerability

# SPDX-FileCopyrightText: 2021 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:open-emr:openemr";

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.145672");
  script_version("2025-04-11T15:45:04+0000");
  script_tag(name:"last_modification", value:"2025-04-11 15:45:04 +0000 (Fri, 11 Apr 2025)");
  script_tag(name:"creation_date", value:"2021-03-29 08:44:50 +0000 (Mon, 29 Mar 2021)");
  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:L/UI:R/S:C/C:L/I:L/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-03-24 18:24:00 +0000 (Wed, 24 Mar 2021)");

  script_cve_id("CVE-2021-25921");

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

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

  script_name("OpenEMR 2.7.3-rc1 < 6.0.0.1 XSS Vulnerability");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("Web application abuses");
  script_dependencies("gb_openemr_http_detect.nasl");
  script_mandatory_keys("openemr/detected");

  script_tag(name:"summary", value:"OpenEMR 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:"The module OpenEMR can be abused by stored XSS vulnerability
  since it performs improper validation on the input sent to the allergies 'Title' field of patient
  details, before rendering the patient details in the reports page. An attacker could lure an admin
  to enter a malicious payload and by that initiate the exploit.");

  script_tag(name:"affected", value:"OpenEMR version 2.7.3-rc1 through 6.0.0.");

  script_tag(name:"solution", value:"Update to version 6.0.0.1 or later.");

  script_xref(name:"URL", value:"https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25921");

  exit(0);
}

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_in_range(version: version, test_version: "2.7.3", test_version2: "6.0.0")) {
  report = report_fixed_ver(installed_version: version, fixed_version: "6.0.0.1", install_path: location);
  security_message(port: port, data: report);
  exit(0);
}

exit(99);