pgAdmin < 9.16 Missing Authentication (CVE-2026-12046)

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

include('compat.inc');

if (description)
{
  script_id(322417);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/06/25");

  script_cve_id("CVE-2026-12046");

  script_name(english:"pgAdmin < 9.16 Missing Authentication (CVE-2026-12046)");

  script_set_attribute(attribute:"synopsis", value:
"The pgAdmin instance installed on the remote host is affected by a missing authentication vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of pgAdmin installed on the remote host is prior to 9.16. It is, therefore, affected by
a missing authentication vulnerability:

  - Two state-mutating SQL Editor endpoints are missing the pga_login_required decorator and are
    reachable without authentication in server mode. Both endpoints reach pickle.loads on a
    session-stored command object. Chained with a separately-obtained SECRET_KEY leak and write
    access to the sessions directory, this exposes an unauthenticated remote code execution path.
    (CVE-2026-12046)

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/pgadmin-org/pgadmin4/blob/REL-9_16/docs/en_US/release_notes_9_16.rst
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?58802d4b");
  script_set_attribute(attribute:"see_also", value:"https://github.com/pgadmin-org/pgadmin4/issues/10072");
  script_set_attribute(attribute:"solution", value:
"Upgrade pgAdmin to version 9.16 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/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:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-12046");

  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:"2026/06/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/18");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/06/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:postgresql:pgadmin_4");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_end_attributes();

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

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

  script_dependencies("postgresql_pgadmin4_macos_installed.nbin", "postgresql_pgadmin4_win_installed.nbin");
  script_require_keys("installed_sw/PostgreSQL pgAdmin4");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'PostgreSQL pgAdmin4', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints': [
        {'min_version': '6.9', 'fixed_version': '9.16'}
      ]
    }
  ]
};

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