PHPMailer 1.7, when configured to use sendmail, allows remote attackers to execute arbitrary shell commands via shell metacharacters in the SendmailSend function in class.phpmailer.php.
- http://seclists.org/fulldisclosure/2011/Oct/223
- http://yehg.net/lab/pr0js/advisories/%5BvTiger_5.2.1%5D_rce
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