CVE-2026-110533

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CVE-2026-110533

Summary: FV Flowplayer Video Player <= 7.5.55.7212 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Shortcode Attributes

Details: 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.

References: 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, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110533.json, https://nvd.nist.gov/vuln/detail/CVE-2026-110533, https://github.com/foliovision/fv-wordpress-flowplayer/commit/7ea0b1bcbedcfc26b43a4b41a32e51c9f81b4332