CVE-2016-6854 Cross-site scripting in n/a
Attackers can execute malicious scripts in a user's context via inline PGP signatures, leading to session hijacking or unauthorized 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
- None listed
What is CVE-2016-6854?
CVE-2016-6854 is a medium-severity cross-site scripting vulnerability in n/a, published on 15 Dec 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
An issue was discovered in Open-Xchange OX Guard before 2.4.2-rev5. Script code which got injected to a mail with inline PGP signature gets executed when verifying the signature. Malicious script code can be executed within a user's context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail, deleting data etc.).
Weakness: CWE-79
Which versions are affected by CVE-2016-6854?
It affects 1 product.
Products include Open-Xchange Ox Guard.
How do I fix CVE-2016-6854?
No fix has been published for CVE-2016-6854 yet. Limit exposure of the affected software until one is available.
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-2016-6854 being exploited?
There is no known exploitation of CVE-2016-6854 in the wild and no public exploit code.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as GHSA-8f3m-v9r8-jc7p.