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Actively exploited · Published Nov 9, 2017 · Assigned by mitre

CVE-2017-16651

High 7.8 Exploited

In plain English

A high-severity security flaw in Roundcube Webmail from Roundcube. Attackers are actively exploiting it in the wild (listed by CISA on November 3, 2021). The chance it is exploited in the next 30 days is estimated at 45.7% (higher than 99% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)45.7%top 1.2% of all CVEs
Exploited in the wildYesCISA KEV since Nov 3, 2021
Attack tooling2Metasploit, Public PoC

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by May 3, 2022.

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12roundcube1.3.3+dfsg.1-1DEBIAN-CVE-2017-16651
Debian:13roundcube1.3.3+dfsg.1-1DEBIAN-CVE-2017-16651
Debian:14roundcube1.3.3+dfsg.1-1DEBIAN-CVE-2017-16651

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-552 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References