CVE-2017-16651
Roundcube Webmail File Disclosure Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 45.74% probability · 99th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-552
- Affected
- roundcube/webmail · debian/debian linux
- Source
- cve@mitre.org
EPSS moved from 45.7% on 24 September 2026 to 45.7% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2017-16651
References
- http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/101793Third Party Advisory, VDB Entry
- https://github.com/roundcube/roundcubemail/issues/6026Issue Tracking, Patch, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.1.10Issue Tracking, Release Notes, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.2.7Issue Tracking, Release Notes, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.3.3Issue Tracking, Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/11/msg00039.htmlMailing List, Third Party Advisory
- https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10Issue Tracking, Vendor Advisory
- https://www.debian.org/security/2017/dsa-4030Issue Tracking, Third Party Advisory
- http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.htmlExploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/101793Third Party Advisory, VDB Entry
- https://github.com/roundcube/roundcubemail/issues/6026Issue Tracking, Patch, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.1.10Issue Tracking, Release Notes, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.2.7Issue Tracking, Release Notes, Third Party Advisory
- https://github.com/roundcube/roundcubemail/releases/tag/1.3.3Issue Tracking, Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/11/msg00039.htmlMailing List, Third Party Advisory
- https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10Issue Tracking, Vendor Advisory
- https://www.debian.org/security/2017/dsa-4030Issue Tracking, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-16651US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.