CVE-2016-9263 Cross-site scripting in n/a
Remote attackers can execute cross-domain Flash injection in WordPress if specific sandboxing is disabled, potentially compromising user sessions.
- 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-2016-9263?
CVE-2016-9263 is a medium-severity cross-site scripting vulnerability in Wordpress Wordpress, published on 12 Oct 2017. 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
WordPress through 4.8.2, when domain-based flashmediaelement.swf sandboxing is not used, allows remote attackers to conduct cross-domain Flash injection (XSF) attacks by leveraging code contained within the wp-includes/js/mediaelement/flashmediaelement.swf file.
Weakness: CWE-20
Which versions are affected by CVE-2016-9263?
It affects 1 product.
Products include Wordpress Wordpress.
How do I fix CVE-2016-9263?
Apply the vendor's patch.
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-2016-9263 being exploited?
There is no known exploitation of CVE-2016-9263 in the wild and no public exploit code.
Other vulnerabilities in Wordpress Wordpress
Sources
Also known as DEBIAN-CVE-2016-9263, GHSA-94pj-jgcq-pjjg.