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...
- Published
- Dec 8, 2016
- Updated
- Aug 6, 2024
- Assigning CNA
- mitre
- Evidence observed
- Aug 5, 2026
Primary CVSS
nvd · CVSS 3.0
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HLow · next 30 days
- Percentile
- 91.4%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1- exploit-CVE-2016-9920Exploit
Roundcube 1.0.0 <= 1.2.2 Remote Code Execution exploit and vulnerable container
Responsible use
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.