CVE-2026-110533

The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'fv_player_videos[_fv_player_user_video][]' parameter in all versions up to, and including, 7.5.55.7212 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires an administrator to have enabled the "Allow visitors to upload videos to their profile" (profile_videos_enable_bio) setting before Subscriber-level users can submit profile videos.

• https://github.com/foliovision/fv-wordpress-flowplayer/commit/7ea0b1bcbedcfc26b43a4b41a32e51c9f81b4332

• https://github.com/foliovision/fv-wordpress-flowplayer/commit/7ea0b1bcbedcfc26b43a4b41a32e51c9f81b4332
• https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/flowplayer/modules/ad-popup.module.js#L64
• https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/models/custom-videos.php#L364
• https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/models/custom-videos.php#L367
• https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/models/custom-videos.php#L370
• https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/models/email-subscription.php#L729
• https://plugins.trac.wordpress.org/browser/fv-wordpress-flowplayer/trunk/models/flowplayer-frontend.php#L993
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a24acd18-c94d-4fde-bf6c-7f6b839336d1?source=cve

• MEDIUMCVE-2012-20003PoC
• MEDIUMCVE-2012-20004PoC
• MEDIUMCVE-2012-20005PoC
• MEDIUMCVE-2013-20009PoC
• MEDIUMCVE-2014-125131PoC
• MEDIUMCVE-2014-125132PoC
• MEDIUMCVE-2015-20130PoC
• MEDIUMCVE-2016-20098PoC

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