CVE-2012-2520 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via crafted strings in Microsoft Office and SharePoint products, requiring user interaction to execute.
- 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-2012-2520?
CVE-2012-2520 is a medium-severity cross-site scripting vulnerability in Microsoft Office Web Apps, published on 9 Oct 2012. 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 Microsoft InfoPath 2007 SP2 and SP3 and 2010 SP1, Communicator 2007 R2, Lync 2010 and 2010 Attendee, SharePoint Server 2007 SP2 and SP3 and 2010 SP1, Groove Server 2010 SP1, Windows SharePoint Services 3.0 SP2, SharePoint Foundation 2010 SP1, and Office Web Apps 2010 SP1 allows remote attackers to inject arbitrary web script or HTML via a crafted string, aka "HTML Sanitization Vulnerability."
Weakness: CWE-79
Which versions are affected by CVE-2012-2520?
It affects 8 products.
Products include Microsoft Groove Server, Microsoft Infopath, Microsoft Lync, Microsoft Office Communicator, Microsoft Office Web Apps, Microsoft Sharepoint Foundation and 2 more.
How do I fix CVE-2012-2520?
No fix has been published for CVE-2012-2520 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-2012-2520 being exploited?
There is no known exploitation of CVE-2012-2520 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Office Web Apps
Sources
Also known as GHSA-x6pw-cr36-fr76.