WordPress Plugin 'LA Studio Element Kit for Elementor' < 1.6.0 Unauthenticated Privilege Escalation via Backdoor

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

include('compat.inc');

if (description)
{
  script_id(299364);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/02/19");

  script_cve_id("CVE-2026-0920");

  script_name(english:"WordPress Plugin 'LA Studio Element Kit for Elementor' < 1.6.0 Unauthenticated Privilege Escalation via Backdoor");

  script_set_attribute(attribute:"synopsis", value:
"The remote WordPress application has a plugin installed that is affected by an unauthenticated privilege escalation vulnerability.");
  script_set_attribute(attribute:"description", value:
"The WordPress application running on the remote host has a version of the 'LA Studio Element Kit for Elementor' plugin 
that is prior to 1.6.0. It is, therefore, affected by an unauthenticated privilege escalation vulnerability. The plugin 
contains a backdoor that allows unauthenticated attackers to create new administrative user accounts via the lakit_bkrole 
parameter. This vulnerability enables complete site takeover without any authentication, allowing attackers to gain full 
administrative access to the WordPress site.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://wordpress.org/plugins/lastudio-element-kit/");
  # https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/lastudio-element-kit/la-studio-element-kit-for-elementor-1563-unauthenticated-privilege-escalation-via-backdoor-to-administrative-user-creation-via-lakit-bkrole-parameter
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f26d14cf");
  script_set_attribute(attribute:"solution", value:
"Update the 'LA Studio Element Kit for Elementor' plugin to version 1.6.0 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:"cvss_score_source", value:"CVE-2026-0920");

  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:"2026/01/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/01/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/02/18");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:la-studioweb:lastudio_element_kit");
  script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
  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("wordpress_plugin_detect.nbin");
  script_require_keys("installed_sw/WordPress", "www/PHP");
  script_require_ports("Services/www", 80);

  exit(0);
}

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

var app_info = vcf::wordpress::plugin::get_app_info(plugin:'lastudio-element-kit');

var constraints = [
  { 'fixed_version': '1.6.0'}
];

vcf::check_version_and_report(
  app_info:app_info,
  constraints:constraints,
  severity:SECURITY_HOLE
);