CVE-2017-0195 Cross-site scripting in Office
Remote attackers can execute arbitrary script with local user privileges via crafted requests in Microsoft Excel Services on SharePoint.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-0195?
CVE-2017-0195 is a medium-severity cross-site scripting vulnerability in Microsoft Office Online Server, published on 12 Apr 2017. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Microsoft Excel Services on Microsoft SharePoint Server 2010 SP1 and SP2, Microsoft Excel Web Apps 2010 SP2, Microsoft Office Web Apps 2010 SP2, Microsoft Office Web Apps Server 2013 SP1 and Office Online Server allows remote attackers to perform cross-site scripting and run script with local user privileges via a crafted request, aka "Microsoft Office XSS Elevation of Privilege Vulnerability."
Weakness: CWE-79
Which versions are affected by CVE-2017-0195?
It affects 5 products.
Products include Microsoft Excel Web App, Microsoft Office Online Server, Microsoft Office Web Apps, Microsoft Office Web Apps Server, Microsoft Sharepoint Server.
How do I fix CVE-2017-0195?
No fix has been published for CVE-2017-0195 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-2017-0195 being exploited?
There is no known exploitation of CVE-2017-0195 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Office Online Server
Sources
Also known as GHSA-w7pr-r354-3wwp.