Another critical security flaw has been found in the PHP web service protocol, which could allow remote attackers...
to take control of servers.
The flaw has been found in the XML-RPC for PHP and PEAR XML_RPC libraries, after similar flaws were found earlier this summer.
XML-based Remote Procedure Call (RPC) systems are used with the HTTP protocol to power web services, and the affected libraries support applications such as content management and blogs.
Various suppliers that use the affected libraries have already issued fixes to the flaw.
More details on the problem and information on patches are available here: