Vulnerability in Roundcube Webmail
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 l…
EPSS: 0.383 (97.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Roundcube Webmail — versions 1.2.0, 1.2.1, 1.2.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
- 94858 (vdb-entry, x_refsource_BID)
- [oss-security] 20161208 roundcube code execution via mail() (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Release Notes, Vendor Advisory)
- GLSA-201612-44 (vendor-advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2016-9920?
- CVE-2016-9920 is a high-severity vulnerability in Roundcube Webmail, classified under Improper Access Control. CVSS score: 7.5/10. Published 2016-12-08.
- How severe is CVE-2016-9920?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2016-9920 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.