Notepad++ < 8.9.4 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(311263);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/04");

  script_cve_id("CVE-2026-3008", "CVE-2026-6539");
  script_xref(name:"IAVA", value:"2026-A-0410");

  script_name(english:"Notepad++ < 8.9.4 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"A text editor on the remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Notepad++ installed on the remote host is prior to 8.9.4. It is, therefore,
affected by multiple vulnerabilities:

  - A string injection vulnerability exists in the FindInFiles feature. When the nativeLang.xml
    file's 'find-result-hits' element contains a format string specifier such as '%s', successful
    exploitation could allow an attacker to obtain memory address information or crash the
    application. (CVE-2026-3008)

  - A vulnerability exists in the FindInFiles feature related to improper handling of format
    string specifiers in nativeLang.xml's 'find-result-hits' element. (CVE-2026-6539)

Note that Nessus has not tested for these issues but has instead relied only on the application's
self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://notepad-plus-plus.org/news/v894-released/");
  # https://community.notepad-plus-plus.org/topic/27469/notepad-release-8-9-3
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1cf60025");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Notepad++ version 8.9.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-6539");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2026-3008");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/04/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/04/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/30");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:notepad-plus-plus:notepad\+\+");
  script_set_attribute(attribute:"stig_severity", value:"I");
  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': [
        {'fixed_version': '8.9.4'}
      ]
    }
  ]
};

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