CVE-2016-6844 Cross-site scripting in n/a
Attackers can execute malicious scripts via SVG files in Open-Xchange Mail or Drive, 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-2016-6844?
CVE-2016-6844 is a medium-severity cross-site scripting vulnerability in Open-Xchange Open-Xchange Appsuite, 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 App Suite before 7.8.2-rev8. Script code within SVG files is maintained when opening such files "in browser" based on our Mail or Drive app. In case of "a" tags, this may include link targets with base64 encoded "data" references. 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-2016-6844?
It affects 1 product.
Products include Open-Xchange Open-Xchange Appsuite.
How do I fix CVE-2016-6844?
No fix has been published for CVE-2016-6844 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-2016-6844 being exploited?
There is no known exploitation of CVE-2016-6844 in the wild and no public exploit code.
Other vulnerabilities in Open-Xchange Open-Xchange Appsuite
Sources
Also known as GHSA-qh89-78x8-q62v.