WordPress wpcu3er Plugin 'ajaxReq.php' Arbitrary File Upload Vulnerability_

Bugtraq ID:	49488
Class:	Input Validation Error
CVE:
Remote:	Yes
Local:	No
Published:	Sep 07 2011 12:00AM
Updated:	Sep 07 2011 12:00AM
Credit:	Reported by the vendor
Vulnerable:	WordPress wpcu3er 0.55
Not Vulnerable:	WordPress wpcu3er 0.56

WordPress wpcu3er Plugin 'ajaxReq.php' Arbitrary File Upload Vulnerability_

The wpcu3er plugin is prone to a vulnerability that lets attackers upload arbitrary files. The issue occurs because the application fails to adequately sanitize user-supplied input.

An attacker can exploit this vulnerability to upload arbitrary PHP code and run it in the context of the webserver process. This may facilitate unauthorized access or privilege escalation; other attacks are also possible.

wpcu3er versions 0.56 and prior are vulnerable.

WordPress wpcu3er Plugin 'ajaxReq.php' Arbitrary File Upload Vulnerability_

Attackers can exploit this issue through a browser.

WordPress wpcu3er Plugin 'ajaxReq.php' Arbitrary File Upload Vulnerability_

Solution:
The vendor released an update. Please see the references for details.

WordPress wpcu3er Plugin 'ajaxReq.php' Arbitrary File Upload Vulnerability_

References:

• WordPress Homepage (WordPress)
  
• wpcu3er Plugin Changelog (Wordpress)