CVE-2017-16651

Description

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 files on the host's filesystem, including configuration files, as exploited in the wild in November 2017. The attacker must be able to authenticate at the target system with a valid username/password as the attack requires an active session. The issue is related to file-based attachment plugins and _task=settings&_action=upload-display&_from=timezone requests.

Metrics

CVSS 3.1

7.8 (HIGH) Score source: NVD CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — exploit probability

46% (percentile: 99) as of 1 November 2026

CWE

CWE-552

Affected products

roundcube: webmail; debian: debian linux

References

• https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10 Issue TrackingVendor Advisory
• https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10 Issue TrackingVendor Advisory
• https://github.com/roundcube/roundcubemail/issues/6026 Issue TrackingPatchThird Party Advisory
• https://github.com/roundcube/roundcubemail/issues/6026 Issue TrackingPatchThird Party Advisory
• http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosu… ExploitThird Party AdvisoryVDB Entry
• http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosu… ExploitThird Party AdvisoryVDB Entry
• http://www.securityfocus.com/bid/101793 Third Party AdvisoryVDB Entry
• https://github.com/roundcube/roundcubemail/releases/tag/1.1.10 Issue TrackingRelease NotesThird Party Advisory
• https://github.com/roundcube/roundcubemail/releases/tag/1.2.7 Issue TrackingRelease NotesThird Party Advisory
• https://github.com/roundcube/roundcubemail/releases/tag/1.3.3 Issue TrackingRelease NotesThird Party Advisory