CVE-2017-6814 — In WordPress before 4

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 t

01What is this vulnerability?

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.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-03-12T01:59:00.160
• Last modified: 2026-05-13T00:24:29.033

09References

• openwall.com — http://openwall.com/lists/oss-security/2017/03/06/8
• www.debian.org — http://www.debian.org/security/2017/dsa-3815
• www.securityfocus.com — http://www.securityfocus.com/bid/96601
• www.securitytracker.com — http://www.securitytracker.com/id/1037959
• codex.wordpress.org — https://codex.wordpress.org/Version_4.7.3
• github.com — https://github.com/WordPress/WordPress/commit/28f838ca3ee205b6f39cd2bf23eb4e5f52…
• sumofpwn.nl — https://sumofpwn.nl/advisory/2016/wordpress_audio_playlist_functionality_is_affe…
• wordpress.org — https://wordpress.org/news/2017/03/wordpress-4-7-3-security-and-maintenance-rele…
• wpvulndb.com — https://wpvulndb.com/vulnerabilities/8765
• openwall.com — http://openwall.com/lists/oss-security/2017/03/06/8