Description
WordPress Plugin Download Shortcode is prone to a local file inclusion vulnerability because it fails to sufficiently sanitize user-supplied input. Exploiting this issue may allow an attacker to obtain sensitive information that could aid in further attacks. WordPress Plugin Download Shortcode version 0.2.3 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.0 or latest
References
http://www.exploit-db.com/exploits/34436/
http://www.intelligentexploit.com/view-details.html?id=19701
http://packetstormsecurity.com/files/128024/WordPress-ShortCode-1.1-Local-File-Inclusion.html