Notepad++ 8.9.4 / 8.9.5 < 8.9.6 Installer Vulnerability

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(318686);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/04");

  script_cve_id("CVE-2026-46710");

  script_name(english:"Notepad++ 8.9.4 / 8.9.5 < 8.9.6 Installer Vulnerability");

  script_set_attribute(attribute:"synopsis", value:
"A text editor on the remote Windows host is affected by an installer vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Notepad++ installed on the remote host is 8.9.4 or 8.9.5. It is, therefore,
affected by an installer vulnerability:

  - A vulnerability exists in the Notepad++ installer affecting versions 8.9.4 and 8.9.5 that
    could allow an attacker to compromise the installation process. (CVE-2026-46710)

Note that Nessus has not tested for this issue but has instead relied only on the application's
self-reported version number.");
  # https://github.com/notepad-plus-plus/notepad-plus-plus/security/advisories/GHSA-6f8f-vmfc-r8c5
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d70480f7");
  # https://community.notepad-plus-plus.org/topic/27540/notepad-release-8.9.6
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6fb7d4bf");
  script_set_attribute(attribute:"see_also", value:"https://notepad-plus-plus.org/news/v896-released/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Notepad++ version 8.9.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-46710");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/05/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/05/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:notepad-plus-plus:notepad\+\+");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("notepad_plus_plus_win_installed.nbin");
  script_require_keys("installed_sw/Notepad++", "SMB/Registry/Enumerated");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'os': 'windows'}}
  ],
  'checks': [
    {
      'product': {'name': 'Notepad++', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'min_version': '8.9.4', 'fixed_version': '8.9.6'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_WARNING);
vdf::handle_check_and_report_errors(vdf_result:result);