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CVE-2026-121515

MEDIUM 5.4 CVSS 3.1
Published
November 7, 2026
Last modified
November 7, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-79
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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 'comment' parameter in all versions up to, and including, 7.5.56.7212 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. This requires the 'Parse Vimeo and YouTube links' option to be enabled, and the injected comment must be approved before the script executes for site visitors.

Affected WordPress components

  • FV Flowplayer Video Player Plugin · fv-wordpress-flowplayer
    Confirmed match Active
    Up to and including 7.5.56.7212
    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 7.5.56.7212

References

  • github.com https://github.com/foliovision/fv-wordpress-flowplayer/commit/9f224f71eb16ad01330df46c30b89e8e582cf8c8
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/frontend.php#L657
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/frontend.php#L692
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/controller/frontend.php#L707
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/ca0191be-df68-4b5f-85e6-40e962cc5de8?source=cve
  • nvd.nist.gov Official NVD record