CVE-2016-0011 Cross-site scripting in n/a

Medium 5.4 Published Updated

Remote authenticated users can bypass access controls and execute cross-site scripting attacks by modifying a webpart in Microsoft 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-2016-0011?

CVE-2016-0011 is a medium-severity cross-site scripting vulnerability in Microsoft Sharepoint Foundation, published on 13 Jan 2016. 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 SharePoint Server 2013 SP1 and SharePoint Foundation 2013 SP1 allow remote authenticated users to bypass intended Access Control Policy restrictions and conduct cross-site scripting (XSS) attacks by modifying a webpart, aka "Microsoft SharePoint Security Feature Bypass," a different vulnerability than CVE-2015-6117.

Weakness: CWE-79

Which versions are affected by CVE-2016-0011?

It affects 2 products.

Products include Microsoft Sharepoint Foundation, Microsoft Sharepoint Server.

How do I fix CVE-2016-0011?

No fix has been published for CVE-2016-0011 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-2016-0011 being exploited?

There is no known exploitation of CVE-2016-0011 in the wild and no public exploit code.

All Microsoft Sharepoint Foundation vulnerabilities

Sources

Also known as GHSA-jxpv-fgvw-ffh8.

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