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Findings

CVE-2017-16651

Roundcube Webmail File Disclosure Vulnerability

Published Nov 9, 2017 · updated Jun 16, 2026 · roundcube webmail

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.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 9, 2017 · Catalog

    Detected

    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 attachm

  2. Nov 3, 2021 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. May 3, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    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 attachm

Required action

Apply updates per vendor instructions.

CISA due date May 3, 2022

Affected

  • cpe debian/debian linux7.0
  • cpe roundcube/webmailversion unspecified
  • cpe roundcube/webmail1.2.0
  • cpe roundcube/webmail1.2.1
  • cpe roundcube/webmail1.2.2
  • cpe roundcube/webmail1.2.3
  • cpe roundcube/webmail1.2.4
  • cpe roundcube/webmail1.2.5
  • cpe roundcube/webmail1.2.6
  • vendor Roundcube Roundcube Webmailversion unspecified

Sources

  • CISA KEVCVE-2017-16651

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

    cisa.gov
  • CVE.orgCVE-2017-16651

    Official CVE identifier

    cve.org
  • FIRST EPSSCVE-2017-16651

    30-day exploitation probability 45.7%

    first.org
  • Metasploit Modulesauxiliary_gather/roundcube_auth_file_read

    Public module reference (normal). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDCVE-2017-16651

    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 sy

    nvd.nist.gov
  • Packet Storm Securityhttp://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com

References