Vulnerability in WordPress Content Management System Could Allow Remote Code Execution

ITS Advisory Number: 
2013-088
Date(s) Issued: 
Friday, September 13, 2013
Subject: 
Vulnerability in WordPress Content Management System Could Allow Remote Code Execution
Overview: 

A vulnerability has been discovered in WordPress CMS, which could allow an attacker to take control of the affected system. WordPress is an open source content management system (CMS) for websites. Successful exploitation of this vulnerability could allow the attacker to gain the same user rights as the user running the application.  Depending on the privileges associated with the user, an attacker could install programs; view, change, or delete data; or create new accounts with full user rights.

Systems Affected: 
  • WordPress 3.6
RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
High
BUSINESS
Large and medium business entities: 
High
Small business entities: 
High
Home Users: 
N/A
Description: 

Multiple vulnerabilities have been identified in WordPress CMS. The details for these vulnerabilties are as follows:

Successful exploitation could result in an attacker gaining the same privileges as the logged on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Actions: 
  • Update vulnerable systems running WordPress immediately after appropriate testing.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to visit un-trusted websites or follow links provided by unknown or un-trusted sources.
References: 
WORDPRESS:
http://codex.wordpress.org/Version_3.6.1
CVE:
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4338
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4339
http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4340
SecurityFocus:
http://www.securityfocus.com/bid/62345