Roundcube
CVE-2016-9920
HIGH
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionCVE.org
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.
AnalysisAI
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. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 38.3%.
Technical ContextAI
This vulnerability is classified under CWE-284. 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. Affected products include: Roundcube Webmail. Version information: before 1.1.7.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Roundcube Webmail contains a critical PHP object deserialization vulnerability (CVE-2025-49113, CVSS 9.9) that allows au
Roundcube Webmail before 1.1.10, 1.2.x before 1.2.7, and 1.3.x before 1.3.3 allows unauthorized access to arbitrary file
Directory traversal vulnerability in the set_skin function in program/include/rcmail_output_html.php in Roundcube before
rcube_image.php in Roundcube Webmail before 1.4.4 allows attackers to execute arbitrary code via shell metacharacters in
Roundcube Webmail before 1.4.4 allows attackers to include local files and execute code via directory traversal in a plu
The DBMail driver in the Password plugin in Roundcube before 1.1.0 allows remote attackers to execute arbitrary commands
A Cross-Site Scripting vulnerability in Roundcube through 1.5.7 and 1.6.x through 1.6.7 allows a remote attacker to stea
Multiple buffer overflows in the DBMail driver in the Password plugin in Roundcube before 1.1.0 allow remote attackers t
Roundcube Webmail allows arbitrary password resets by authenticated users. Rated high severity (CVSS 8.8), this vulnerab
roundcube version 1.3.4 and earlier contains an Insecure Permissions vulnerability in enigma plugin that can result in e
An issue was discovered in Roundcube Webmail before 1.4.4. Rated medium severity (CVSS 6.5), this vulnerability is remot
Cross-site scripting (XSS) vulnerability in Roundcube Webmail before 1.2.0 allows remote attackers to inject arbitrary w
Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
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