SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2017-6814

In WordPress before 4.7.3, there is authenticated Cross-Site Scripting (XSS) via Media File Metadata.

MEDIUM 5.4EPSS 2.87%

Does this matter?

Lower severity and a low EPSS score (2.87%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.0
5.4 MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS
2.87% probability · 87th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-79
Affected
wordpress/wordpress · debian/debian linux
Source
cve@mitre.org
EPSS trend
0%3%5%21 September 2026: 4.10%22 September 2026: 2.85%27 October 2026: 2.87%21 September 202627 October 2026

EPSS moved from 4.1% on 21 September 2026 to 2.9% on 27 October 2026.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.