Joomla 3.0.x < 5.4.6 / 6.0.x < 6.1.1 Joomla 6.1.1 & 5.4.6 Security & Bugfix Release (5954-joomla-6-1-1-5-4-6-security-bugfix-release)

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

include('compat.inc');

if (description)
{
  script_id(316827);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/29");

  script_cve_id("CVE-2026-48905");
  script_xref(name:"IAVA", value:"2026-A-0511");

  script_name(english:"Joomla 3.0.x < 5.4.6 / 6.0.x < 6.1.1 Joomla 6.1.1 & 5.4.6 Security & Bugfix Release (5954-joomla-6-1-1-5-4-6-security-bugfix-release)");

  script_set_attribute(attribute:"synopsis", value:
"A PHP application running on the remote web server is affected by a vulnerability.");
  script_set_attribute(attribute:"description", value:
"According to its self-reported version, the instance of Joomla! running on the remote web server is 3.0.x prior to 5.4.6
or 6.0.x prior to 6.1.1. It is, therefore, affected by a vulnerability.

  - Lack of input filtering leads to an XSS vector in the HTML filter code. (CVE-2026-48905)

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/1033-20260501-core-xss-in-feed-modules.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?68d8fa4d");
  # https://developer.joomla.org/security-centre/1034-20260502-core-xss-in-com-associations.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?adabf728");
  # https://developer.joomla.org/security-centre/1035-20260503-core-xss-in-com-contenthistory
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?9ad3550f");
  # https://developer.joomla.org/security-centre/1036-20260504-core-xss-in-readmore-links
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?511051d1");
  # https://developer.joomla.org/security-centre/1037-20260505-core-csrf-in-user-activation-endpoint
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4d67cbe7");
  # https://developer.joomla.org/security-centre/1038-20260506-core-authenticated-blind-sqli-in-com-finder.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?68eb773f");
  # https://developer.joomla.org/security-centre/1039-20260507-core-authenticated-blind-sqli-in-com-tags.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?96fa9f1d");
  # https://developer.joomla.org/security-centre/1040-20260508-core-improper-access-check-in-com-config-webservice-endpoints.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?67872695");
  # https://developer.joomla.org/security-centre/1041-20260509-core-lfi-in-htmlview-layout-parameter.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5fcbdef2");
  # https://developer.joomla.org/security-centre/1042-20260510-core-path-traversal-in-com-media-webservice-endpoint.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fd8823e6");
  # https://developer.joomla.org/security-centre/1043-20260511-core-mfa-authentication-bypass.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e93d28c0");
  # https://developer.joomla.org/security-centre/1044-20260512-core-mfa-authentication-bypass.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ae4e3610");
  # https://developer.joomla.org/security-centre/1045-20260513-core-privilege-escalation-through-com-users-batch-task.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f467705a");
  # https://developer.joomla.org/security-centre/1046-20260514-core-privilege-escalation-through-com-users-webservice-endpoints.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?15601b81");
  # https://developer.joomla.org/security-centre/1047-20260515-core-incorrect-access-control-in-sample-data-plugins.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4397f9aa");
  # https://developer.joomla.org/security-centre/1048-20260516-core-incorrect-access-control-in-com-scheduler.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f41fac5c");
  # https://developer.joomla.org/security-centre/1049-20260517-core-incorrect-cache-key-construction-for-inputfilter-objects.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0f388f4a");
  # https://developer.joomla.org/security-centre/1050-20260518-core-transport-encryption-downgrade-for-password-and-username-reset-links.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?fe2d9b95");
  # https://developer.joomla.org/security-centre/1051-20260519-framework-inadequate-content-filtering-within-the-checkattribute-filter-code.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c1f740df");
  # https://developer.joomla.org/security-centre/1052-20260520-framework-inadequate-content-filtering-within-the-cleanattributes-filter-code.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?4483acda");
  # https://www.joomla.org/announcements/release-news/5954-joomla-6-1-1-5-4-6-security-bugfix-release.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?8f8c9109");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Joomla! version 5.4.6 / 6.1.1 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/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:N/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:L/AT:N/PR:H/UI:P/VC:H/VI:L/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-2026-48905");

  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:"2026/05/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/05/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/05/26");

  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:"generated_plugin", value:"current");
  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' : '3.0.0', 'max_version' : '5.4.5', 'fixed_version' : '5.4.6' },
  { 'min_version' : '6.0.0', 'max_version' : '6.1.0', 'fixed_version' : '6.1.1' }
];

vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_WARNING,
    flags:{'xss':TRUE}
);