CVE-2015-8770 Path traversal in n/a

High 7.5 Published 29 Jan 2016 Updated 6 Aug 2024

Authenticated attackers can exploit a directory traversal flaw in Roundcube to read arbitrary files or execute code via the skin parameter.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2015-8770?

CVE-2015-8770 is a high-severity path traversal vulnerability in n/a, published on 29 Jan 2016. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-22

Which versions are affected by CVE-2015-8770?

It affects 1 product.

Products include Roundcube Roundcube Webmail.

How do I fix CVE-2015-8770?

Upgrade to a fixed version.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2015-8770 being exploited?

There is no known exploitation of CVE-2015-8770 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as DEBIAN-CVE-2015-8770, DLA-392-1, DSA-3541-1, GHSA-xc26-wfvp-2xpj.