blogsafe.org My Downloads

BlogSafe.org

WordPress CVEs

Search and review WordPress-related vulnerability records.

← Back to CVE list

CVE-2023-4520

MEDIUM 6.1 CVSS 3.1
Published
August 25, 2023
Last modified
June 17, 2026
NVD status
Modified
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Description

The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘_fv_player_user_video’ parameter saved via the 'save' function hooked via init, and the plugin is also vulnerable to Arbitrary Usermeta Update via the 'save' function in versions up to, and including, 7.5.37.7212 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page, and makes it possible to update the user metas arbitrarily, but the meta value can only be a string.

Affected WordPress components

  • FV Flowplayer Video Player Plugin · fv-wordpress-flowplayer
    Confirmed match Active
    Up to and including 7.5.37.7212
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • foliovision FV Flowplayer Video Player — Up to and including 7.5.37.7212
  • foliovision fv_flowplayer_video_player — Up to and including 7.5.37.7212

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/tags/7.5.36.7212/models/custom-videos.php#L341 Product
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/2957322/fv-wordpress-flowplayer#file2 Patch
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/c55ca7d4-6bc0-49c9-8ce0-50fff8775a76?source=cve Third Party Advisory
  • nvd.nist.gov Official NVD record