WordPress Plugin 'Email Subscribers & Newsletters' < 4.5.6 Email Forgery/Spoofing Vulnerability.

#
# (C) Tenable Network Security, Inc.
#

include('compat.inc');

if (description)
{
  script_id(140577);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/06");

  script_cve_id("CVE-2020-5780");
  script_xref(name:"TRA", value:"TRA-2020-53");

  script_name(english:"WordPress Plugin 'Email Subscribers & Newsletters' < 4.5.6 Email Forgery/Spoofing Vulnerability.");

  script_set_attribute(attribute:"synopsis", value:
"The remote WordPress application has a plugin installed that is vulnerable to an email forgery/spoofing vulnerability.");
  script_set_attribute(attribute:"description", value:
"The WordPress application running on the remote host has a version of the 'Email Subscribers & Newsletters' plugin that
is affected by an email forgery/spoofing vulnerability in the class-es-newsletters.php class due to missing
authentication for a critical function. An unauthenticated, remote attacker can exploit this via a specially crafted
ajax request, to send forged email to all recipients from the available lists of contacts or subscribers, with complete 
control over the content and subject of the email.

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/email-subscribers/");
  script_set_attribute(attribute:"solution", value:
"Update the 'Email Subscribers & Newsletters' plugin to version 4.5.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  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:N/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-5780");

  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:"2020/09/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/09/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/09/14");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:wordpress:wordpress");
  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) 2020-2024 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_exclude_keys("Settings/disable_cgi_scanning");
  script_require_ports("Services/www", 80);

  exit(0);
}

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

app_info = vcf::wordpress::plugin::get_app_info(plugin:'email-subscribers');
vcf::check_granularity(app_info:app_info, sig_segments:2);

constraints = [
  { 'fixed_version' : '4.5.6' }
];

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