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CVE-2017-16651

87
FAUCET Score

CVE-2017-16651 is an authenticated arbitrary file disclosure vulnerability affecting Roundcube Webmail versions before 1.1.10, 1.2.7, and 1.3.3. This flaw, related to attachment plugins and specific requests, allows an authenticated attacker to read any file on the host's filesystem, including sensitive configuration files. With a CVSS score of 7.8 (High), it presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. This vulnerability has been actively exploited in the wild, with a Metasploit module available, yet it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.1.9CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
1.2.0CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:1.2.0:*:*:*:*:*:*:*
1.2.1CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:1.2.1:*:*:*:*:*:*:*
1.2.2CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:1.2.2:*:*:*:*:*:*:*
1.2.3CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:1.2.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
36.92%
Probability of exploitation in next 30 days
EPSS Percentile
98.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
Added to KEV · Nov 3, 2021
Metasploit: Roundcube TimeZone Authenticated File Disclosure · Nov 9, 2017
This CVE's current EPSS score of 0.3692 is in the 100th percentile among its peer group of 16,985 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/161226/Roundcube-Webmail-1.2-File-Disclosure.html
ExploitThird Party AdvisoryVDB Entry
github.com / roundcube/roundcubemail/issues/6026
Issue TrackingPatchThird Party Advisory
github.com / roundcube/roundcubemail/releases/tag/1.1.10
Issue TrackingRelease NotesThird Party Advisory
github.com / roundcube/roundcubemail/releases/tag/1.2.7
Issue TrackingRelease NotesThird Party Advisory
github.com / roundcube/roundcubemail/releases/tag/1.3.3
Issue TrackingRelease NotesThird Party Advisory
lists.debian.org / debian-lts-announce/2017/11/msg00039.html
Mailing ListThird Party Advisory
roundcube.net / news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10
Issue TrackingVendor Advisory
debian.org / security/2017/dsa-4030
Issue TrackingThird Party Advisory
securityfocus.com / bid/101793
Third Party AdvisoryVDB Entry