CVE-2026-121515 · Package
NO FIX YET · SEE WHAT TO DO
The FV Flowplayer Video Player plugin for WordPress accepts unsanitized input in its 'comment' parameter, so an unauthenticated attacker can store a script in a page. The script runs in the browser of any visitor who opens that page once the comment is approved.
first public Nov 7, 2026 · 1 source
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Only WordPress sites running the FV Flowplayer Video Player plugin up to and including 7.5.56.7212, with the 'Parse Vimeo and YouTube links' option enabled, are exposed. The attack needs an injected comment to be approved before visitors are affected. Sites without the plugin, or with that option off, can skip it.
Not affected if comments-not-approved, option-disabled, plugin-not-installed
Who cares flowplayer, self-hosted, wordpress
7.5.56.7212 are affected; the sources do not name a fixed version.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.
This page as .md · .json · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
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