CVE-2017-6814
wordpress - security update
5.4
MEDIUM
CVSS 3.1
EPSS 2.4%
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.
How to fix CVE-2017-6814
To remediate CVE-2017-6814, upgrade the affected package to a fixed version below.
- —upgrade to 4.7.3+dfsg-1 or later
- —upgrade to 3.6.1+dfsg-1~deb7u14 or later
- —upgrade to 4.1+dfsg-1+deb8u13 or later
Is CVE-2017-6814 being exploited?
Low — EPSS is 2.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 4.7.3+dfsg-1
- from 0, < 3.6.1+dfsg-1~deb7u14
- from 0, < 4.1+dfsg-1+deb8u13
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |