Description
WordPress Plugin Event Registration is prone to multiple vulnerabilities, including cross-site scripting and SQL injection vulnerabilities because it fails to properly sanitize user-supplied input. An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site, to steal cookie-based authentication credentials, to compromise the application, access or modify data or to exploit vulnerabilities in the underlying database. WordPress Plugin Event Registration version 6.02.03 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 6.03.01 or latest
References
http://seclists.org/bugtraq/2016/May/34
https://www.youtube.com/watch?v=N4eaCAhk-a0
https://codemetrix.net/security/2016/04/25/hacking-wordpress-via-xss-event-registration.html
https://plugins.svn.wordpress.org/event-registration/tags/6.03.01/changes.txt
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