CVE-2017-16651: Roundcube Webmail File Disclosure Vulnerability

CISA Known Exploited Vulnerabilities

Name

Roundcube Webmail File Disclosure Vulnerability

Vendor

Roundcube

Product

Roundcube Webmail

Added to the catalog

2021-11-03

Due date for US federal agencies

2022-05-03

Weaknesses

CWE-552

Catalog version

2026.10.30

Roundcube Webmail contains a file disclosure vulnerability caused by insufficient input validation in conjunction with file-based attachment plugins, which are used by default.

Required action (CISA)

Apply updates per vendor instructions.

Ransomware use: CISA does not mark known use of this vulnerability in ransomware campaigns.

Links in CISA's notes

• https://nvd.nist.gov/vuln/detail/CVE-2017-16651

Read on 2026-11-02T23:39:54.475Z under licence cisa-kev-cc0@b0067899 from https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

NVD analysis

Status

Analyzed

Published

2017-11-09T14:29:00.267

Last modified

2026-06-17T01:09:37.363

Weaknesses

CWE-552

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.

References

• http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.html (Exploit, Third Party Advisory, VDB Entry)
• http://www.securityfocus.com/bid/101793 (Third Party Advisory, VDB Entry)
• https://github.com/roundcube/roundcubemail/issues/6026 (Issue Tracking, Patch, Third Party Advisory)
• https://github.com/roundcube/roundcubemail/releases/tag/1.1.10 (Issue Tracking, Release Notes, Third Party Advisory)
• https://github.com/roundcube/roundcubemail/releases/tag/1.2.7 (Issue Tracking, Release Notes, Third Party Advisory)
• https://github.com/roundcube/roundcubemail/releases/tag/1.3.3 (Issue Tracking, Release Notes, Third Party Advisory)
• https://lists.debian.org/debian-lts-announce/2017/11/msg00039.html (Mailing List, Third Party Advisory)
• https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10 (Issue Tracking, Vendor Advisory)
• https://www.debian.org/security/2017/dsa-4030 (Issue Tracking, Third Party Advisory)
• http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.html (Exploit, Third Party Advisory, VDB Entry)
• http://www.securityfocus.com/bid/101793 (Third Party Advisory, VDB Entry)
• https://github.com/roundcube/roundcubemail/issues/6026 (Issue Tracking, Patch, Third Party Advisory)
• https://github.com/roundcube/roundcubemail/releases/tag/1.1.10 (Issue Tracking, Release Notes, Third Party Advisory)
• https://github.com/roundcube/roundcubemail/releases/tag/1.2.7 (Issue Tracking, Release Notes, Third Party Advisory)
• https://github.com/roundcube/roundcubemail/releases/tag/1.3.3 (Issue Tracking, Release Notes, Third Party Advisory)
• https://lists.debian.org/debian-lts-announce/2017/11/msg00039.html (Mailing List, Third Party Advisory)
• https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10 (Issue Tracking, Vendor Advisory)
• https://www.debian.org/security/2017/dsa-4030 (Issue Tracking, Third Party Advisory)
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-16651 (US Government Resource)

This product uses the NVD API but is not endorsed or certified by the NVD.

Read on 2026-11-02T23:41:35.381Z under licence nvd-api-terms-of-use@ff2a5288 from https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2017-16651

CVE record

Assigner

mitre

State

PUBLISHED

Published

2017-11-09T14:00:00.000Z

Updated

2025-10-21T23:55:30.379Z

Problem types

n/a

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.

References

• https://github.com/roundcube/roundcubemail/releases/tag/1.3.3
• https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10
• [debian-lts-announce] 20171128 [SECURITY] [DLA 1193-1] roundcube security update
• https://github.com/roundcube/roundcubemail/releases/tag/1.1.10
• 101793
• https://github.com/roundcube/roundcubemail/releases/tag/1.2.7
• DSA-4030
• https://github.com/roundcube/roundcubemail/issues/6026
• http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.html

Read on 2026-11-03T00:35:02.899Z under licence cve-terms-of-use@81bfa2f3 from https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2017/16xxx/CVE-2017-16651.json

Defensive techniques (MITRE D3FEND)

D3FEND maps these defensive techniques to the weakness (CWE) that NVD lists for this CVE, through the digital artifacts the weakness affects. D3FEND does not say they stop this vulnerability.

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