Description
WordPress Plugin User Submitted Posts is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin User Submitted Posts version 20151113 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 20160215 or latest
References
http://seclists.org/bugtraq/2016/Feb/176
https://wordpress.org/plugins/user-submitted-posts/changelog/