Plone 5.2.3 XSS

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

include('compat.inc');

if (description)
{
  script_id(329007);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/23");

  script_cve_id("CVE-2021-29002");

  script_name(english:"Plone 5.2.3 XSS");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by cross-site scripting (XSS) vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Plone installed on the remote host is 5.2.3. It is, therefore, affected by a stored cross-site scripting
(XSS) vulnerability within the site-controlpanel due to improper validation of user-supplied input before returning it to
users. An authenticated, remote attacker can exploit this, via 'form.widgets.site_title' parameter, by convincing a user
to click a specially crafted URL, to execute arbitrary script code in a user's browser session.

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:"https://github.com/plone/Products.CMFPlone/issues/3255");
  script_set_attribute(attribute:"see_also", value:"https://www.exploit-db.com/exploits/49668");
  script_set_attribute(attribute:"solution", value:
"Contact vendor for solution.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/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:L/UI:R/S:C/C:L/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-2021-29002");

  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:"2021/03/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:plone:plone");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

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

  script_dependencies("python_plone_detect.nbin");
  script_require_ports("installed_sw/plone", "Settings/ParanoidReport");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'plone', 'type': 'app'},
      'requires': [{'scope': 'target', 'match': {'paranoia': true}}],
      'check_algorithm': 'default',
      'constraints': [
        {'equal': '5.2.3', 'fixed_display': 'Contact Vendor'}
      ]
    }
  ]
};

var result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_NOTE, check_backporting:true, flags:{'xss': true});
vdf::handle_check_and_report_errors(vdf_result:result);