Arbitrary Code Execution via Crafted E-mail Message in Roundcube

Arbitrary Code Execution via Crafted E-mail Message in Roundcube

CVE-2016-9920 · MEDIUM Severity

AV:N/AC:M/AU:S/C:P/I:P/A:P

steps/mail/sendmail.inc in Roundcube before 1.1.7 and 1.2.x before 1.2.3, when no SMTP server is configured and the sendmail program is enabled, does not properly restrict the use of custom envelope-from addresses on the sendmail command line, which allows remote authenticated users to execute arbitrary code via a modified HTTP request that sends a crafted e-mail message.

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