RabbitMQ 3.7.x < 4.0.13 / 4.1.x < 4.1.2 XSS via Virtual Host Names

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

include('compat.inc');

if (description)
{
  script_id(327583);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/20");

  script_cve_id("CVE-2026-44839");
  script_xref(name:"IAVA", value:"2026-A-0683");

  script_name(english:"RabbitMQ 3.7.x < 4.0.13 / 4.1.x < 4.1.2 XSS via Virtual Host Names");

  script_set_attribute(attribute:"synopsis", value:
"The RabbitMQ installed on the remote host is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of RabbitMQ installed on the remote host is affected by a cross-site scripting vulnerability:

  - Unsanitized virtual host names allow for XSS in the management UI pages that list virtual hosts if the attacker
    manages to find a way to force a virtual host to restart. (CVE-2026-44839)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://github.com/rabbitmq/rabbitmq-server/security/advisories/GHSA-fh5r-jpm3-fjwp
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ee28e874");
  script_set_attribute(attribute:"solution", value:
"Upgrade to RabbitMQ version 4.0.13, 4.1.2, or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:M/C:P/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N");
  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:N/AC:H/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/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-2026-44839");

  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:"2026/05/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/05/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/17");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:pivotal_software:rabbitmq");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:vmware:rabbitmq");
  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:"Misc.");

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

  script_dependencies("rabbitmq_server_nix_installed.nbin", "vmware_rabbitmq_win_installed.nbin");
  script_require_keys("installed_sw/RabbitMQ", "Settings/ParanoidReport");

  exit(0);
}
include('vdf.inc');

# Not checking if management plugin is enabled
if (report_paranoia < 2) audit(AUDIT_PARANOID);

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'requires': [
    {'scope': 'target', 'match': {'paranoia': true}}
  ],
  'checks': [
    {
      'product': {'name': 'RabbitMQ', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'min_version': '3.7.0', 'fixed_version': '4.0.13'},
        {'min_version': '4.1.0', 'fixed_version': '4.1.2'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_WARNING, flags:{"xss":TRUE});
vdf::handle_check_and_report_errors(vdf_result:result);