CVE-2017-16651· NVD / CVE Program· CNA mitre

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 file

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.

HighCVSS 7.8 · v3.1KEVWeaponized Fix available

Noroxi analysis

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Published: Nov 9, 2017
Updated: Jun 16, 2026
EPSS: 45.7% · 99th percentile
CWE: CWE-552

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Action score

This week

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CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 30 / 30 · Listed
EPSS: 14 / 30 · 45.7%

CISA SSVC decision

Exploitation: active
Automatable: no
Technical impact: total

Vulnrichment: CISA's decision-tree inputs.

Actively exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on Nov 3, 2021. That signals real attacks, not theory.

Remediation deadline for government agencies: May 3, 2022.

Affected systems

Vendor	Product	CPE
roundcube	webmail	cpe:2.3:a:roundcube:webmail
debian	debian linux	cpe:2.3:o:debian:debian_linux

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

roundcube webmailup to 1.1.9 inclusive
roundcube webmail1.2.0
roundcube webmail1.2.1
roundcube webmail1.2.2
roundcube webmail1.2.3
roundcube webmail1.2.4
roundcube webmail1.2.5
roundcube webmail1.2.6
roundcube webmail1.3.0
roundcube webmail1.3.1
roundcube webmail1.3.2

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Alpine:v3.3	roundcubemail	before 1.1.10-r0	1.1.10-r0
Alpine:v3.4	roundcubemail	before 1.2.7-r0	1.2.7-r0
Debian:12	roundcube	before 1.3.3+dfsg.1-1	1.3.3+dfsg.1-1
Debian:7	roundcube	before 0.7.2-9+deb7u9	0.7.2-9+deb7u9
Debian:9	roundcube	before 1.2.3+dfsg.1-4+deb9u1	1.2.3+dfsg.1-4+deb9u1
openSUSE:Tumbleweed	roundcubemail	before 1.4.11-1.3	1.4.11-1.3

Same product

roundcube: all records

Other highest-scoring records for the same primary product.

CVE-2025-49113Roundcube Webmail before 1.5.10 and 1.6.x before 1.6.11 allows remote code execution by authenticated users because the _from parameter in aKEV
95Now
CVE-2020-12641rcube_image.php in Roundcube Webmail before 1.4.4 allows attackers to execute arbitrary code via shell metacharacters in a configuration setKEV
94Now
CVE-2024-42009A Cross-Site Scripting vulnerability in Roundcube through 1.5.7 and 1.6.x through 1.6.7 allows a remote attacker to steal and send emails ofKEV
92Now
CVE-2021-44026Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to a potential SQL injection via search or search_params.KEV
90Now
CVE-2020-13965An issue was discovered in Roundcube Webmail before 1.3.12 and 1.4.x before 1.4.5.KEV
77This week
CVE-2024-37383Roundcube Webmail before 1.5.7 and 1.6.x before 1.6.7 allows XSS via SVG animate attributes.KEV
76This week

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
alpine:roundcubemail	1.1.10-r0 · Alpine:v3.3	Package registry (OSV)
debian:roundcube	1.3.3+dfsg.1-1 · Debian:12	Package registry (OSV)
opensuse:roundcubemail	1.4.11-1.3 · openSUSE:Tumbleweed	Package registry (OSV)

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

Metasploit module ×1
Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Metasploit module	auxiliary/gather/roundcube_auth_file_readRoundcube TimeZone Authenticated File Disclosureauxiliary	2017-11-09
Proof-of-concept repository on GitHub	stars:3	2021-01-06

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

MetasploitNov 9, 2017same day
PublishedNov 9, 2017
First PoCJan 6, 2021+1154 d
CISA KEVNov 3, 2021+1455 d
TodaySep 30, 2026+3247 d

EPSS, last 120 days+9% in 7 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

NextcloudHackerOne · paid

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-552 · Files or Directories Accessible to External Parties

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

Change log

Fix✗ → ✓Sep 28, 2026, 10:47 PM UTC

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

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Data sources and verification

CNA: mitre

CVE.org (CNA)Oct 21, 2025, 11:55 PM UTC
CISA ADPOct 21, 2025, 11:55 PM UTC
NVDJun 16, 2026, 9:09 PM UTC
OSV / GHSASep 30, 2026, 3:23 AM UTC
MetasploitSep 30, 2026, 3:18 AM UTC
PoC-in-GitHubSep 30, 2026, 3:18 AM UTC

Each line is when that source was last processed for this record.

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