Description
WordPress Plugin Ultimate Addons for Visual Composer is prone to multiple vulnerabilities, including cross-site scripting, cross-site request forgery and remote command execution vulnerabilities. Exploiting these issues could allow an attacker to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site, allowing the attacker to steal cookie-based authentication credentials and launch other attacks, to perform certain administrative actions and gain unauthorized access to the affected application or to execute arbitrary commands within the context of the vulnerable application. WordPress Plugin Ultimate Addons for Visual Composer version 3.16.10 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 3.16.12 or latest
References
http://wphutte.com/ultimate-addons-for-visual-composer-v3-16-10-xss-csrf-rce/
https://codecanyon.net/item/ultimate-addons-for-visual-composer/6892199