CVE-2015-8793 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via the _mbox parameter in Roundcube webmail, potentially leading to session hijacking or malicious actions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2015-8793?
CVE-2015-8793 is a medium-severity cross-site scripting vulnerability in Roundcube Webmail, published on 29 Jan 2016. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Cross-site scripting (XSS) vulnerability in program/include/rcmail.php in Roundcube before 1.0.6 and 1.1.x before 1.1.2 allows remote attackers to inject arbitrary web script or HTML via the _mbox parameter in a mail task to the default URL, a different vulnerability than CVE-2011-2937.
Weakness: CWE-79
Which versions are affected by CVE-2015-8793?
It affects 1 product.
Products include Roundcube Webmail.
How do I fix CVE-2015-8793?
Upgrade to a fixed version.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2015-8793 being exploited?
There is no known exploitation of CVE-2015-8793 in the wild and no public exploit code.
Other vulnerabilities in Roundcube Webmail
Sources
Also known as DEBIAN-CVE-2015-8793, GHSA-cxwg-vcpf-j5j6.