CVE-2015-8770roundcube Path Traversal
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 ..
Published Jan 29, 2016 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2015-8770, DLA-392-1, DSA-3541-1, UBUNTU-CVE-2015-8770
Key Facts
Patch immediately- CVE-2015-8770 is a high-severity vulnerability (CVSS 7.5 v3) affecting Roundcube Webmail, roundcube (debian), roundcubemail (suse).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 22% probability of exploitation in the next 30 days.
- Fixed versions are available, including roundcube 0.3.1-6+deb6u1, roundcube 0.7.2-9+deb7u2, roundcube 1.1.4+dfsg.1-1.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3
7.5
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
22%
Higher than 97.6% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
42/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
2
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
Advisories And Exploit References
Description
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.
Affected Products
19 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Roundcube WebmailRoundcube | 1.1.0, 1.1.1, 1.1.2, 1.1.3 | 1.0.7 |
| roundcubedebian | See advisory | 1.1.4+dfsg.1-1 |
| roundcubemailsuse | See advisory | 1.0.8-17.1 |
Patched Releases
roundcube
0.3.1-6+deb6u1, 0.7.2-9+deb7u2, 1.1.4+dfsg.1-1
Roundcube Webmail
1.0.7
roundcubemail
1.0.8-17.1, 1.1.4-6.1, 1.2.3-1.1
Timeline
Publicly disclosed
Jan 29, 2016
Last updated
Aug 4, 2026
Weakness Type
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- advisorysecurity-tracker.debian.org · CVE-2015-8770
- advisoryubuntu.com · CVE-2015-8770
- advisorycve.org · CVERecord
- patchroundcube.net · updates-1.1.4-and-1.0.8-released
- exploitpacketstormsecurity.com · Roundcube-1.1.3-Path-Traversal.html
FAQ
Common Questions.
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 ..
Affected: Roundcube Webmail versions 1.1.0, 1.1.1, 1.1.2, 1.1.3; roundcube (debian); roundcubemail (suse). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including roundcube 0.3.1-6+deb6u1, roundcube 0.7.2-9+deb7u2, roundcube 1.1.4+dfsg.1-1.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2015-8770 On Your Attack Surface?
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