Joomla 4.0.x < 5.4.9 / 6.0.x < 6.1.4 Multiple Vulnerabilities (joomla-6-1-4-5-4-9-security-bugfix-release)

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

include('compat.inc');

if (description)
{
  script_id(362486);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/02");

  script_cve_id(
    "CVE-2026-90913",
    "CVE-2026-90914",
    "CVE-2026-90915",
    "CVE-2026-90916",
    "CVE-2026-90917",
    "CVE-2026-90918",
    "CVE-2026-92222",
    "CVE-2026-92224",
    "CVE-2026-92225",
    "CVE-2026-92226",
    "CVE-2026-92227"
  );
  script_xref(name:"IAVA", value:"2026-A-1067");

  script_name(english:"Joomla 4.0.x < 5.4.9 / 6.0.x < 6.1.4 Multiple Vulnerabilities (joomla-6-1-4-5-4-9-security-bugfix-release)");

  script_set_attribute(attribute:"synopsis", value:
"A PHP application running on the remote web server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the instance of Joomla! running on the remote web server is 4.0.x prior to
5.4.9 or 6.0.x prior to 6.1.4. It is, therefore, affected by multiple vulnerabilities.

  - Joomla! Core - [20260905] - Core - Arbitrary directory deletion via cache purge action in Joomla
    4.0.0-5.4.8, 6.0.0-6.1.3 - An improper validation of the cache group name allowed path traverals in the
    file storage of the caching layer, resulting in arbitrary directory deletions. (CVE-2026-90915)

  - Joomla! Core - [20260913] - Core - Improper ACL checks for varous webservice edit tasks in Joomla
    4.0.0-5.4.8, 6.0.0-6.1.3 - An improper access check allows unauthorized users to perform edit actions on
    otherwise uneditable items. (CVE-2026-92226)

  - Joomla! Core - [20260914] - Core - MFA Authentication Bypass through rememberme cookies in Joomla
    4.0.0-5.4.8, 6.0.0-6.1.3 - The premature issuance of an rememberme cookie leads to a MFA bypass
    vulnerability. (CVE-2026-92227)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  # https://developer.joomla.org/security-centre/1083-20260903-core-improper-acl-checks-for-user-level-webservice-endpoints.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?75c1efec");
  # https://developer.joomla.org/security-centre/1084-20260904-core-xss-in-the-generic-media-output-layouts.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?3f86facc");
  # https://developer.joomla.org/security-centre/1085-20260905-core-arbitrary-directory-deletion-via-cache-purge-action.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8cfda066");
  # https://developer.joomla.org/security-centre/1086-20260906-core-improper-acl-checks-in-content-history-comparsion-view.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?90d63918");
  # https://developer.joomla.org/security-centre/1087-20260907-core-improper-acl-checks-in-outputs-for-tagged-items.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?28dacf97");
  # https://developer.joomla.org/security-centre/1088-20260908-core-xss-in-html-mail-templates.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?6814be60");
  # https://developer.joomla.org/security-centre/1089-20260909-core-ssrf-vectors-in-various-core-extensions.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fa52cf35");
  # https://developer.joomla.org/security-centre/1091-20260911-core-xss-in-link-toolbar-layout.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a4066309");
  # https://developer.joomla.org/security-centre/1092-20260912-core-xss-in-module-list.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5d47d436");
  # https://developer.joomla.org/security-centre/1093-20260913-core-improper-acl-checks-for-varous-webservice-edit-tasks.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?035d1624");
  # https://developer.joomla.org/security-centre/1094-20260914-core-mfa-authentication-bypass-through-rememberme-cookies.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d26df404");
  # https://www.joomla.org/announcements/release-news/joomla-6-1-4-5-4-9-security-bugfix-release.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?832125e4");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Joomla! version 5.4.9 / 6.1.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  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_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-92227");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/09/29");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/09/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/02");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:joomla:joomla\!");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

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

  script_dependencies("joomla_detect.nasl");
  script_require_keys("installed_sw/Joomla!", "www/PHP", "Settings/ParanoidReport");
  script_require_ports("Services/www", 80);

  exit(0);
}

include('vcf.inc');
include('http.inc');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var port = get_http_port(default:80, php:TRUE);

var app_info = vcf::get_app_info(app:'Joomla!', port:port, webapp:TRUE);

vcf::check_granularity(app_info:app_info, sig_segments:3);

var constraints = [
  { 'min_version' : '4.0.0', 'max_version' : '5.4.8', 'fixed_version' : '5.4.9' },
  { 'min_version' : '6.0.0', 'max_version' : '6.1.3', 'fixed_version' : '6.1.4' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_HOLE,
    flags:{"xss":TRUE}
);