Description
WordPress Plugin BigDoor Quick Gamification for WordPress 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 BigDoor Quick Gamification for WordPress version 1.0.5 is vulnerable; prior versions may also be affected.
Remediation
Edit the source code to ensure that input is properly sanitised or disable the plugin until a fix is available
References
http://www.vapidlabs.com/wp/wp_advisory.php?v=1410
http://blog.portswigger.net/2007/03/exploiting-xss-in-post-requests.html
Related Vulnerabilities
WordPress 4.3.x Multiple Vulnerabilities (4.3 - 4.3.19)
WordPress Plugin Quiz And Survey Master-Best Quiz, Exam and Survey Unspecified Vulnerability (7.0.1)
WordPress Plugin Import/Export Customizer Settings Cross-Site Request Forgery (1.0.3)
WordPress Plugin Translate WordPress-Google Language Translator Cross-Site Scripting (4.0.9)
WordPress Plugin BP Profile Search PHP Object Injection (4.5.3)