PHP remote file inclusion vulnerability in wp_xml_export.php in the BackWPup plugin before 1.7.2 for WordPress allows remote attackers to execute arbitrary PHP code via a URL in the wpabs parameter.
packetstormsecurity.org/files/view/99799/SOS-11-003.txt
seclists.org/fulldisclosure/2011/Mar/328
secunia.com/advisories/43565
wordpress.org/support/topic/plugin-backwpup-remote-and-local-codeexecution-vulnerability-sos-11-003
www.exploit-db.com/exploits/17056
www.openwall.com/lists/oss-security/2011/11/22/10
www.openwall.com/lists/oss-security/2011/11/22/7
www.osvdb.org/71481
www.senseofsecurity.com.au/advisories/SOS-11-003.pdf