CVE-2016-9920

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.

CVSS v3.0

7.5 HIGHCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

6.0 MEDIUMAV:N/AC:M/Au:S/C:P/I:P/A:P

EPSS

5.60% chance of exploitation in the next 30 days, 92th percentile

Published

2016-12-08

Updated

2024-08-06

Proof-of-concept exploits (2)

• https://blog.ripstech.com/2016/roundcube-command-execution-via-email/
• t0kx/exploit-CVE-2016-992048★ · 2024-04-20

References

• CVE Record
• NVD entry

Related

• CVE-2010-0426
• CVE-2015-1427
• CVE-2015-3306
• CVE-2015-5602
• CVE-2016-9918
• CVE-2016-9936