Description
WordPress Plugin Pay With Tweet is prone to an SQL injection vulnerability and multiple cross-site scripting vulnerabilities because it fails to sufficiently sanitize user-supplied data. Exploiting these vulnerabilities could allow an attacker to steal cookie-based authentication credentials, compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. WordPress Plugin Pay With Tweet version 1.1 is vulnerable; other versions may also be affected.
Remediation
Update to plugin version 1.2 or latest
References
http://www.securityfocus.com/bid/51308/exploit
http://www.exploit-db.com/exploits/18330/
http://packetstormsecurity.com/files/108441/wptweet-sqlxss.txt