---
id: "CVE-2026-121764"
page: "https://infrastack.ai/live/CVE-2026-121764"
kind: "vulnerability"
aliases: ["CVE-2026-121764"]
title: "FV Flowplayer Video Player for WordPress: stored XSS through input handling"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["fv-flowplayer", "package", "self-hosted", "wordpress"]
not_affected_if: ["plugin-not-installed", "trusted-editors-only"]
published_at: "2026-11-09T10:17:07+00:00"
first_seen_at: "2026-11-09T10:25:48+00:00"
updated_at: "2026-11-09T10:26:15+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121764", "first_seen_at": "2026-11-09T10:25:48+00:00"}]
exploit_sources: []
---

# FV Flowplayer Video Player for WordPress: stored XSS through input handling

Link for people: https://infrastack.ai/live/CVE-2026-121764 (this .md is for agents)

FV Flowplayer Video Player, a WordPress plugin, fails to neutralize input when generating web pages, enabling stored cross-site scripting. An attacker who can store crafted content in the plugin can run scripts in other visitors' browsers.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed plugin version of `fv-wordpress-flowplayer` in the WordPress admin under Plugins.
- Look for the FV Flowplayer plugin in the site's `wp-content/plugins/` directory and read its version header.

## Fix

- Versions through `7.5.56.7212` are affected per NVD; move to a later release than that. A fixed version is not stated in the sources.

## Timeline

- 2026-11-09T10:25:48+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121764

## From the sources

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in FolioVision FV Flowplayer Video Player fv-wordpress-flowplayer allows Stored XSS.This issue affects FV Flowplayer Video Player: from n/a through 7.5.56.7212.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_