CVE-2011-1891 Cross-site scripting in n/a

Medium 4.3 Published Updated

Remote attackers can inject arbitrary web script via reflected XSS in SharePoint, requiring user interaction to execute malicious code.

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-2011-1891?

CVE-2011-1891 is a medium-severity cross-site scripting vulnerability in Microsoft Sharepoint Foundation, published on 15 Sep 2011. 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 Windows SharePoint Services 3.0 SP2, and SharePoint Foundation 2010 Gold and SP1, allows remote attackers to inject arbitrary web script or HTML via unspecified parameters in a request to a script, aka "Contact Details Reflected XSS Vulnerability."

Weakness: CWE-79

Which versions are affected by CVE-2011-1891?

It affects 2 products.

Products include Microsoft Sharepoint Foundation, Microsoft Sharepoint Services.

How do I fix CVE-2011-1891?

No fix has been published for CVE-2011-1891 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-2011-1891 being exploited?

There is no known exploitation of CVE-2011-1891 in the wild and no public exploit code.

All Microsoft Sharepoint Foundation vulnerabilities

Sources

Also known as GHSA-2hw3-28v7-q78p.

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