CVE-2017-6814

Public Exploit

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.

Category

5.4
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 2.16% Top 20%
Vendor Advisory debian.org Vendor Advisory wordpress.org Vendor Advisory wordpress.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/WordPress/WordPress/commit/28f838ca3ee205b6f39cd2bf23eb4e5f52796bd7 issue tracking third party advisory patch
http://www.securitytracker.com/id/1037959 vdb entry third party advisory
http://www.debian.org/security/2017/dsa-3815 third party advisory vendor advisory
https://wpvulndb.com/vulnerabilities/8765 third party advisory patch
http://www.securityfocus.com/bid/96601 vdb entry third party advisory
https://sumofpwn.nl/advisory/2016/wordpress_audio_playlist_functionality_is_affected_by_cross_site_scripting.html third party advisory exploit
https://wordpress.org/news/2017/03/wordpress-4-7-3-security-and-maintenance-release/ release notes patch vendor advisory
http://openwall.com/lists/oss-security/2017/03/06/8 mailing list exploit third party advisory
https://codex.wordpress.org/Version_4.7.3 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-6814?
CVE-2017-6814 has been scored as a medium severity vulnerability.
How to fix CVE-2017-6814?
To fix CVE-2017-6814, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-6814 being actively exploited in the wild?
It is possible that CVE-2017-6814 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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