CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
97.1%
According to its self-reported version number, the WordPress application running on the remote web server is prior to 4.6. It is, therefore, affected by multiple vulnerabilities :
A path traversal vulnerability exists in the WordPress Admin API in the wp_ajax_update_plugin() function in ajax-actions.php due to improper sanitization of user-supplied input. An authenticated, remote attacker can exploit this, via a specially crafted request, to cause a denial of service condition. (CVE-2016-6896)
A cross-site request forgery vulnerability (XSRF) exists in the admin-ajax.php script due to a failure to require multiple steps, explicit confirmation, or a unique token when performing certain sensitive actions. An unauthenticated, remote attacker can exploit this, by convincing a user to follow a specially crafted link, to perform arbitrary AJAX updates. (CVE-2016-6897)
An information disclosure vulnerability exists in the wp_ajax_update_plugin() function in the ajax-actions.php script due to performing a call to get_plug_data() before checking capabilities. An authenticated, remote attacker can exploit this to bypass intended read-access restrictions, resulting in a disclosure of sensitive information. (CVE-2016-10148)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#
# (C) Tenable Network Security, Inc.
#
include('compat.inc');
if (description)
{
script_id(93111);
script_version("1.13");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/05");
script_cve_id("CVE-2016-6896", "CVE-2016-6897", "CVE-2016-10148");
script_bugtraq_id(92572, 92573);
script_xref(name:"EDB-ID", value:"40288");
script_name(english:"WordPress < 4.6 Multiple Vulnerabilities");
script_set_attribute(attribute:"synopsis", value:
"A PHP application running on the remote web server is affected by
multiple vulnerabilities.");
script_set_attribute(attribute:"description", value:
"According to its self-reported version number, the WordPress
application running on the remote web server is prior to 4.6. It
is, therefore, affected by multiple vulnerabilities :
- A path traversal vulnerability exists in the WordPress
Admin API in the wp_ajax_update_plugin() function in
ajax-actions.php due to improper sanitization of
user-supplied input. An authenticated, remote attacker
can exploit this, via a specially crafted request, to
cause a denial of service condition. (CVE-2016-6896)
- A cross-site request forgery vulnerability (XSRF) exists
in the admin-ajax.php script due to a failure to require
multiple steps, explicit confirmation, or a unique token
when performing certain sensitive actions. An
unauthenticated, remote attacker can exploit this, by
convincing a user to follow a specially crafted link, to
perform arbitrary AJAX updates. (CVE-2016-6897)
- An information disclosure vulnerability exists in the
wp_ajax_update_plugin() function in the ajax-actions.php
script due to performing a call to get_plug_data()
before checking capabilities. An authenticated, remote
attacker can exploit this to bypass intended read-access
restrictions, resulting in a disclosure of sensitive
information. (CVE-2016-10148)
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://wordpress.org/news/2016/08/pepper/");
script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2016/Aug/98");
script_set_attribute(attribute:"solution", value:
"Upgrade to WordPress version 4.6 or later.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:P");
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:U/C:L/I:N/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-2016-6896");
script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2016/08/20");
script_set_attribute(attribute:"patch_publication_date", value:"2016/08/16");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/08/25");
script_set_attribute(attribute:"potential_vulnerability", value:"true");
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) 2016-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("wordpress_detect.nasl");
script_require_keys("www/PHP", "installed_sw/WordPress", "Settings/ParanoidReport");
script_exclude_keys("Settings/disable_cgi_scanning");
script_require_ports("Services/www", 80, 443);
exit(0);
}
include("vcf.inc");
include("http.inc");
app = "WordPress";
get_install_count(app_name:app, exit_if_zero:TRUE);
if (report_paranoia < 2) audit(AUDIT_PARANOID);
port = get_http_port(default:80, php:TRUE);
app_info = vcf::get_app_info(app:app, port:port, webapp:TRUE);
constraints = [{ "fixed_version" : "4.6.0" }];
vcf::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_WARNING,
flags:{xsrf:TRUE}
);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
AI Score
Confidence
High
EPSS
Percentile
97.1%