Kentico Xperience < 13.0.178 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(271229);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/21");

  script_cve_id("CVE-2025-2747", "CVE-2025-2749");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2026/05/04");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2025/11/10");

  script_name(english:"Kentico Xperience < 13.0.178 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"A web content management system on the remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the version of Kentico Xperience on the remote Windows host is prior
to 13.0.178. It is, therefore, affected by multiple vulnerabilities:

  - An authentication bypass vulnerability in Kentico Xperience allows authentication bypass via the Staging
  Sync Server component password handling for the server defined None type. Authentication bypass allows an
  attacker to control administrative objects.This issue affects Xperience through 13.0.178. (CVE-2025-2747)

  - An authenticated remote code execution in Kentico Xperience allows authenticated users Staging Sync Server
  to upload arbitrary data to path relative locations. This results in path traversal and arbitrary file
  upload, including content that can be executed server side leading to remote code execution.This issue
  affects Kentico Xperience through 13.0.178. (CVE-2025-2749)

Note that Nessus has not attempted to exploit these issues but has instead relied only on the application's
self-reported version number.");
  script_set_attribute(attribute:"see_also", value:"https://devnet.kentico.com/download/hotfixes");
  # https://labs.watchtowr.com/bypassing-authentication-like-its-the-90s-pre-auth-rce-chain-s-in-kentico-xperience-cms/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?eb33e3b8");
  script_set_attribute(attribute:"solution", value:
"Apply Hotfix 13.0.178 or upgrade to the latest available stable version.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-2747");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/03/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/03/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/23");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:kentico:kentico_cms");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:kentico:xperience");
  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) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("kentico_cms_win_installed.nbin");
  script_require_keys("installed_sw/Kentico CMS", "SMB/Registry/Enumerated");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::combined_get_app_info(app:'Kentico CMS');

# Configuration required: Staging Service needs to be enabled with the username/password authentication
if (report_paranoia < 2) audit(AUDIT_POTENTIAL_VULN);

var constraints = [
  {'fixed_version': '13.0.178.61018', 'fixed_display': 'Hotfix 13.0.178'}
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);