PHP 8.4.x < 8.4.21 Multiple Vulnerabilities

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

include('compat.inc');

if (description)
{
  script_id(313115);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/15");

  script_cve_id(
    "CVE-2025-14179",
    "CVE-2026-6104",
    "CVE-2026-6722",
    "CVE-2026-6735",
    "CVE-2026-7258",
    "CVE-2026-7259",
    "CVE-2026-7261",
    "CVE-2026-7262",
    "CVE-2026-7263",
    "CVE-2026-7568"
  );
  script_xref(name:"IAVA", value:"2026-A-0440");

  script_name(english:"PHP 8.4.x < 8.4.21 Multiple Vulnerabilities");

  script_set_attribute(attribute:"synopsis", value:
"The version PHP running on the remote web server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of PHP installed on the remote host is prior to 8.4.21. It is, therefore, affected by multiple
vulnerabilities as referenced in the Version 8.4.21 advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"http://php.net/ChangeLog-8.php#8.4.21");
  script_set_attribute(attribute:"see_also", value:"https://github.com/php/php-src/issues/21566");
  # https://github.com/php/php-src/security/advisories/GHSA-4jhr-8w89-j733
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7f3a1374");
  # https://github.com/php/php-src/security/advisories/GHSA-74r9-qxhc-fx53
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e02f65b3");
  # https://github.com/php/php-src/security/advisories/GHSA-7qg2-v9fj-4mwv
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e4bb18ea");
  # https://github.com/php/php-src/security/advisories/GHSA-85c2-q967-79q5
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b571eed4");
  # https://github.com/php/php-src/security/advisories/GHSA-96wq-48vp-hh57
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?05c6355e");
  # https://github.com/php/php-src/security/advisories/GHSA-hmxp-6pc4-f3vv
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5a23c7ef");
  # https://github.com/php/php-src/security/advisories/GHSA-m33r-qmcv-p97q
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ae879d97");
  # https://github.com/php/php-src/security/advisories/GHSA-m8rr-4c36-8gq4
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?7ee922d6");
  # https://github.com/php/php-src/security/advisories/GHSA-w476-322c-wpvm
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a0fc53d2");
  # https://github.com/php/php-src/security/advisories/GHSA-wm6j-2649-pv75
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?cfda0144");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PHP version 8.4.21 or later.");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H");
  script_set_attribute(attribute:"cvss4_supplemental", value:"CVSS:4.0/AU:Y/RE:M/U:Red");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-7261");
  script_set_attribute(attribute:"cvss4_score_source", value:"CVE-2026-6722");

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

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:php:php");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"thorough_tests", 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("php_version.nasl");
  script_require_keys("www/PHP", "installed_sw/PHP");
  script_require_ports("Services/www", 80);

  exit(0);
}

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

var port = get_http_port(default:80, php:TRUE);
var app_info = vcf::get_app_info(app:'PHP', port:port, webapp:TRUE);

var backported = get_kb_item('www/php/' + port + '/' + app_info.version + '/backported');
if ((report_paranoia < 2) && backported)
  audit(AUDIT_BACKPORT_SERVICE, port, 'PHP ' + app_info.version + ' install');

var constraints = [
  { 'min_version' : '8.4.0alpha1', 'fixed_version' : '8.4.21' }
];
vcf::check_version_and_report(
    app_info:app_info,
    constraints:constraints,
    severity:SECURITY_HOLE
);