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Category:   Application (Forum/Board/Portal)  >   WordPress Vendors:   wordpress.org
(WordPress Issues Fix) PHPMailer Input Validation Flaw Lets Remote Users Execute Arbitrary Code on the Target System
SecurityTracker Alert ID:  1037534
SecurityTracker URL:  http://securitytracker.com/id/1037534
CVE Reference:   CVE-2016-10033, CVE-2016-10045   (Links to External Site)
Updated:  Jan 13 2017
Original Entry Date:  Dec 26 2016
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.7 and prior versions
Description:   A vulnerability was reported in PHPMailer. A remote user can execute arbitrary code on the target system. WordPress is affected.

A remote user can supply specially crafted data that, when processed by the target PHPMailer class to send email, will write data containing arbitrary code to a file on the target system that can later be executed. The code will run with the privileges of the target web service.

Several 3rd party products include the vulnerable code, including WordPress, Drupal, SugarCRM, and Joomla!.

Demonstration exploit code is available at:

https://github.com/opsxcq/exploit-CVE-2016-10033

The original advisory is available at:

https://legalhackers.com/advisories/PHPMailer-Exploit-Remote-Code-Exec-CVE-2016-10033-Vuln.html

Dawid Golunski (@dawid_golunski) reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   WordPress has issued a fix (4.7.1).

The WordPress advisory is available at:

https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/

Vendor URL:  wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry is a follow-up to the message listed below.
Dec 26 2016 PHPMailer Input Validation Flaw Lets Remote Users Execute Arbitrary Code on the Target System



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