Serendipity File Extension Processing Arbitrary File Upload Vulnerability

Summary
This host is running Serendipity and is prone to arbitrary file upload vulnerability.
Impact
Successful exploitation will allow attacker to upload PHP scripts and execute arbitrary commands on a web server with a specific configuration. Impact Level: Application
Solution
Upgrade to Serendipity version 1.5 or later. For updates refer to http://www.s9y.org/12.html
Insight
The flaw is due to an input validation error in the file upload functionality when processing a file with a filename containing multiple file extensions.
Affected
Serendipity version prior to 1.5 on all platforms.
References