Plone 4.3.x < 5.2.5 Multiple Vulnerabilities (HF 20210518)

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

include('compat.inc');

if (description)
{
  script_id(329024);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/23");

  script_cve_id(
    "CVE-2021-3313",
    "CVE-2021-21336",
    "CVE-2021-21360",
    "CVE-2021-32633",
    "CVE-2021-32674",
    "CVE-2021-32807",
    "CVE-2021-33507",
    "CVE-2021-33508",
    "CVE-2021-33509",
    "CVE-2021-33510",
    "CVE-2021-33511",
    "CVE-2021-33512",
    "CVE-2021-33513",
    "CVE-2021-33926",
    "CVE-2021-35959"
  );

  script_name(english:"Plone 4.3.x < 5.2.5 Multiple Vulnerabilities (HF 20210518)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Plone installed on the remote host is 4.3.x prior to 5.2.5. It is, therefore, affected by the following
vulnerabilities:

  - Plone CMS has a stored Cross-Site Scripting (XSS) vulnerability in the user fullname property and the file
    upload functionality. (CVE-2021-3313)

  - Products.PluggableAuthService within Zope has an information disclosure vulnerability - everyone can list the names of
    roles defined in the ZODB Role Manager plugin if the site uses this plugin. (CVE-2021-21336)

  - Products.GenericSetup within Zope has an information disclosure vulnerability - anonymous visitors may
    view log and snapshot files generated by the Generic Setup Tool. (CVE-2021-21360)

  - Zope has a remote code execution vulnerability via a traversal in the TAL expressions. (CVE-2021-32633,
    CVE-2021-32674)

  - The AccessControl module within Zope has a remote code execution via the use of unsafe classes in
    permitted modules. (CVE-2021-32807)

  - Zope Products.CMFCore and Products.PluggableAuthService, as used in Plone and other products, allow
    Reflected XSS. (CVE-2021-33507)

  - Plone allows XSS via a full name that is mishandled during rendering of the ownership tab of a content
    item. (CVE-2021-33508)

  - Plone allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the
    ReStructuredText transform in a Python script. (CVE-2021-33509)

  - Plone allows remote authenticated managers to conduct SSRF attacks via an event ical URL, to read one line
    of a file. (CVE-2021-33510)

  - Plone allows SSRF via the lxml parser. (CVE-2021-33511)

  - Plone allows stored XSS attacks (by a Contributor) by uploading an SVG or HTML document. (CVE-2021-33512)

  - Plone allows XSS via the inline_diff methods in Products.CMFDiffTool. (CVE-2021-33513)

  - An issue in Plone CMS allows an attacker to access sensitive information via the RSS feed portlet.
    (CVE-2021-33926)

  - In Plone, Editors are vulnerable to XSS in the folder contents view, if a Contributor has created a folder with a SCRIPT tag
    in the description field (CVE-2021-35959)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number. Since a vendor hotfix (PloneHotfix20210518) may remediate this without a version upgrade, this plugin only
reports when running in Paranoid mode.");
  script_set_attribute(attribute:"see_also", value:"https://plone.org/security/hotfix/20210518/");
  script_set_attribute(attribute:"see_also", value:"http://www.openwall.com/lists/oss-security/2021/05/22/1");
  script_set_attribute(attribute:"solution", value:
"Apply the vendor hotfix (Products.PloneHotfix20210518), or upgrade to Plone 5.2.5 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/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:L/UI:N/S:C/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-2021-33509");

  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:"2020/05/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/05/18");
  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': [
        {
          'min_version': '4.3', 'fixed_version': '5.0', 'fixed_display': '5.2.5',
          'report': {'cves': [
            'CVE-2021-21336','CVE-2021-21360','CVE-2021-32633','CVE-2021-32674','CVE-2021-33507','CVE-2021-33509',
            'CVE-2021-33511','CVE-2021-33512','CVE-2021-33513','CVE-2021-33926'
          ]}
        },{
          'min_version': '5.0', 'fixed_version': '5.2', 'fixed_display': '5.2.5',
          'report': {'cves': [
            'CVE-2021-3313','CVE-2021-21336','CVE-2021-21360','CVE-2021-32633','CVE-2021-32674','CVE-2021-33507',
            'CVE-2021-33509','CVE-2021-33510','CVE-2021-33511','CVE-2021-33512','CVE-2021-33513','CVE-2021-33926',
            'CVE-2021-35959'
          ]}
        },{
          'min_version': '5.2', 'fixed_version': '5.2.5',
          'report': {'cves': [
            'CVE-2021-3313','CVE-2021-21336','CVE-2021-21360','CVE-2021-32633','CVE-2021-32674','CVE-2021-32807',
            'CVE-2021-33507','CVE-2021-33508','CVE-2021-33509','CVE-2021-33510','CVE-2021-33511','CVE-2021-33512',
            'CVE-2021-33513','CVE-2021-33926','CVE-2021-35959'
          ]}
        }
      ]
    }
  ]
};

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