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CVE-2026-109984— FV Flowplayer Video Player <= 7.5.55.7212 - Unauthenticated Stored Cross-Site Scripting via 'ad' Shortcode Attribute in Comments

Quick assessment

Affected
foliovision FV Flowplayer Video Player
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的 FV Flowplayer Video Player 插件在所有 7.5.55.7212 及更早版本中，因输入过滤不足和输出转义缺失，存在存储型跨站脚本（Stored XSS）漏洞，攻击面涉及"comment"参数。该漏洞允许未认证的攻击者在页面中注入任意 Web 脚本；当用户访问包含注入内容的页面时，脚本将被执行。触发该漏洞需满足以下条件：站点必须启用“解析 Vimeo 和 YouTube 链接”选项，且站点管理员需批准包含恶意短代码的评论；一旦满足上述条件，任何与该页面视频播放器交互的访

CVSS 5.4 · Medium

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
foliovision FV Flowplayer Video Player ≤ 7.5.55.7212 affected
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I. Basic Information for CVE-2026-109984

Vulnerability Information
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Vulnerability Title
FV Flowplayer Video Player <= 7.5.55.7212 - Unauthenticated Stored Cross-Site Scripting via 'ad' Shortcode Attribute in Comments
Source: CVE Program / CVE List V5
Vulnerability Description
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, 7.5.55.7212 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 a site administrator to approve the comment containing the malicious shortcode; execution is then triggered for any visitor who interacts with the video player on that page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
foliovision FV Flowplayer Video Player 0 ~ 7.5.55.7212 -

II. Public POCs for CVE-2026-109984

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III. Intelligence Information for CVE-2026-109984

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Other References for CVE-2026-109984 (6)

Same Patch Batch · foliovision · 2026-10-30 · 3 CVEs total

CVE-2026-110533 6.4 MEDIUM FV Flowplayer Video Player <= 7.5.55.7212 - Authenticated (Subscriber+) Stored Cross-Site
CVE-2026-110001 5.4 MEDIUM FV Flowplayer Video Player <= 7.5.55.7212 - Unauthenticated Stored Cross-Site Scripting vi

IV. Related Vulnerabilities

Same product: FV Flowplayer Video Player
Same vendor: foliovision
Same weakness: CWE-79