CVE-2017-6814 Cross-site scripting in n/a
Authenticated attackers can inject malicious scripts via media file metadata in WordPress, potentially leading to session hijacking or code execution.
- 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
- Available
What is CVE-2017-6814?
CVE-2017-6814 is a medium-severity cross-site scripting vulnerability in Debian Debian Linux, published on 12 Mar 2017. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
In WordPress before 4.7.3, there is authenticated Cross-Site Scripting (XSS) via Media File Metadata. This is demonstrated by both (1) mishandling of the playlist shortcode in the wp_playlist_shortcode function in wp-includes/media.php and (2) mishandling of meta information in the renderTracks function in wp-includes/js/mediaelement/wp-playlist.js.
Weakness: CWE-79
Which versions are affected by CVE-2017-6814?
It affects 2 products.
Products include Debian Debian Linux, Wordpress Wordpress.
How do I fix CVE-2017-6814?
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-2017-6814 being exploited?
There is no known exploitation of CVE-2017-6814 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2017-6814, GHSA-4h7x-7f94-8hcj, UBUNTU-CVE-2017-6814.