Vulnerability Report

CVE-2015-8770

Title: Roundcube Roundcube Webmail RCE

Arbitrary File Access

Proof Of Concept

PoC Available for CVE-2015-8770

CWE Category CWE-22

Published Date Jan 29, 2016

Modified Date Jun 17, 2026

Exploit Status Available

Score 7.5 CVSS v3.0

Exploit Probability (EPSS)

23.59%

Vulnerability Summary

CVE-2015-8770: Directory traversal vulnerability in the set_skin function in program/include/rcmail_output_html.php in Roundcube before 1.0.8 and 1.1.x before 1.1.4 allows remote authenticated users with certain permissions to read arbitrary files or possibly execute arbitrary code via a .. (dot dot) in the _skin parameter to index.php.

Impacted Vendors

roundcube 1

Reference Links

http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00028.html http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00029.html http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00030.html http://packetstormsecurity.com/files/135274/Roundcube-1.1.3-Path-Traversal.html http://trac.roundcube.net/changeset/10e5192a2b/github http://trac.roundcube.net/ticket/1490620 http://www.debian.org/security/2016/dsa-3541 http://www.securityfocus.com/archive/1/537304/100/0/threaded https://roundcube.net/news/2015/12/26/updates-1.1.4-and-1.0.8-released/ https://security.gentoo.org/glsa/201603-03 https://www.exploit-db.com/exploits/39245/ https://www.htbridge.com/advisory/HTB23283 http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00028.html http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00029.html http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00030.html http://packetstormsecurity.com/files/135274/Roundcube-1.1.3-Path-Traversal.html http://trac.roundcube.net/changeset/10e5192a2b/github http://trac.roundcube.net/ticket/1490620 http://www.debian.org/security/2016/dsa-3541 http://www.securityfocus.com/archive/1/537304/100/0/threaded https://roundcube.net/news/2015/12/26/updates-1.1.4-and-1.0.8-released/ https://security.gentoo.org/glsa/201603-03 https://www.exploit-db.com/exploits/39245/ https://www.htbridge.com/advisory/HTB23283

CVSS v3.0

Source Entity [email protected]

Severity HIGH

7.5

Attack Vector

NETWORK

Complexity

HIGH

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

6.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:M/Au:S/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2015-8770 Exploits & PoCs (Proof Of Concept)

Exploit-DB https://www.exploit-db.com/exploits/39245

View Code

June 17, 2026 MODIFIED

Vulnerability data updated via NVD.

May 06, 2026 MODIFIED

Vulnerability data updated via NVD.

April 12, 2025 MODIFIED

Vulnerability data or affected products updated.

January 29, 2016 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity HIGH

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.