CVE-2016-4566 Cross-site scripting in n/a
Remote attackers can inject arbitrary web script or HTML via a Same-Origin Method Execution attack in the Plupload Flash component.
- 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
- Available
What is CVE-2016-4566?
CVE-2016-4566 is a medium-severity cross-site scripting vulnerability in Wordpress Wordpress, published on 22 May 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
Cross-site scripting (XSS) vulnerability in plupload.flash.swf in Plupload before 2.1.9, as used in WordPress before 4.5.2, allows remote attackers to inject arbitrary web script or HTML via a Same-Origin Method Execution (SOME) attack.
Weakness: CWE-79
Which versions are affected by CVE-2016-4566?
It affects 2 products.
Products include Plupload Plupload, Wordpress Wordpress.
How do I fix CVE-2016-4566?
Upgrade to a fixed version.
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-2016-4566 being exploited?
There is no known exploitation of CVE-2016-4566 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2016-4566, GHSA-cv88-x229-26m4, UBUNTU-CVE-2016-4566.