CVE-2016-9920

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

Product

Roundcube Webmail

PublishedDec 8, 2016

First seenDec 8, 2016

How to fix

Vendor advisories

security.gentoo.org/glsa/201612-44

Affected products

Product	Affected versions	Fixed in
roundcube webmail	v ≤ 1.1.6, 1.2.0, 1.2.1, 1.2.2	—

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