Description
WordPress Plugin Comment Extra Fields is prone to multiple cross-site scripting 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. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Comment Extra Fields version 1.7 is vulnerable; other 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.securityfocus.com/bid/61554/
http://packetstormsecurity.com/files/122625/WordPress-Comment-Extra-Fields-1.7-CSRF-XSS.html
Related Vulnerabilities
WordPress Plugin Ultimate Profile Builder By CMSHelpLive Multiple Vulnerabilities (2.3.3)
WordPress Plugin WPS Hide Login Multiple Security Bypass Vulnerabilities (1.5.2.2)
WordPress Plugin WP-FaceThumb 'pagination_wp_facethumb' Parameter Cross-Site Scripting (0.1)
WordPress Plugin WP Ad Guru Lite Cross-Site Scripting (1.6.0)