FV Flowplayer Video Player: Cross-site scripting

A Subscriber or higher can put a script payload in an unquoted popup shortcode attribute within their profile biography. The profile_videos_enable_bio option must be enabled and the author biography or archive must render the shortcode. Those conditions allow stored script execution for viewers. Affected versions: <= 7.5.54.7212. The matching official changelog confirms 7.5.55.7212 as fixed for this CVE.

CVE / CNA score 6.4 CVSS 3.1 · security@wordfence.com

NVD score Pending NVD has not published its own CVSS assessment.

Component: FV Flowplayer Video Player
Plugin slug: fv-wordpress-flowplayer
Affected: <= 7.5.54.7212
Safe version: 7.5.55.7212
Published: Oct 10, 2026
Weakness: CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Oct 10, 2026 and is one of 24 known issues for this plugin.

What to do

Update, patch or deactivate.

Update to 7.5.55.7212 or a later supported release. Application-level remediation: Quote and escape shortcode attributes, validate popup content, and restrict shortcode execution in untrusted biography fields.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Unquoted popup Shortcode Attribute in all versions up to, and including, 7.5.54.7212 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. Successful exploitation requires the profile_videos_enable_bio option to be enabled, as script execution occurs on the author bio/archive page where the profile-video shortcode is rendered.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

Primary and upstream sources

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