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PHP < 4.2.3 Mail Function Header Spoofing

Medium

Synopsis

The remote web server is running a version of PHP which is 4.2.2 or older.

Description

The remote web server is running a version of PHP which is 4.2.2 or older. This version has a bug in its mail() function which does not properly sanitize user input. As a result, users can forge email to make it look like it is coming from a different source that the server.

Solution

Upgrade to PHP 4.2.3 or higher.