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FV Flowplayer EUVDEUVD-2026-95915

| CVE-2026-42695 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-10-09 Patchstack GHSA-qpch-xvxf-pvpw
6.5
CVSS 3.1 · Vendor: Patchstack
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticate as low-privileged WordPress user
  2. Delivery
    Inject script via FV Flowplayer input field
  3. Exploit
    Payload stored unsanitized in plugin content
  4. Execution
    Admin views affected page
  5. Persist
    Script executes in admin browser session
  6. Impact
    Hijack session or perform privileged actions

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires an attacker to hold a WordPress account with sufficient privileges to submit/store content through the FV Flowplayer Video Player plugin (per CVSS PR:L), and requires a second user - typically a higher-privileged admin or editor - to subsequently view the page or admin view where the stored payload renders (per UI:R). The affected products are all FV Flowplayer Video Player versions from an unspecified start through 7.5.54.7212. Limiting factors that reduce real-world risk: the attacker cannot be fully anonymous (no PR:N), the payload does not execute until a victim loads the content, and impact is confined to the browser context of whoever views the malicious content rather than direct server compromise. The exact input field serving as the injection vector is not specified in the available description.

Impact

This is a moderate-severity Stored XSS (CWE-79) in the FolioVision FV Flowplayer Video Player WordPress plugin, rated CVSS 6.5. The provided CVSS vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L) indicates network-reachable, low-complexity exploitation that nonetheless requires some level of existing privileges (PR:L) to inject the stored payload and victim interaction (UI:R) to trigger it - classic for a stored XSS where a lower-privileged contributor/author injects script that executes when a higher-privileged user (e.g. an admin) renders the affected page. The scope change (S:C) reflects that code executes in the victim's browser context beyond the vulnerable component. On exploitation signals: there is no CISA KEV listing and no EPSS score supplied in the input, and no public exploit is referenced, so active-exploitation and widespread-weaponization indicators are absent. The single source is a Patchstack database entry (the vendor/researcher who reported it), which confirms the vulnerability and affected version range but does not itself establish in-the-wild use. Overall this is a real but not top-priority issue: it depends on an attacker already holding a privileged-enough account AND a victim viewing the malicious content, which materially lowers real-world urgency compared to an unauthenticated RCE. Note one consistency caveat: the input CVSS already encodes PR:L (authenticated), but no vendor advisory beyond Patchstack is available to independently confirm the exact privilege level required - verify against the plugin's changelog.

Exploit ScenarioDerived

A registered low-privilege user (such as a contributor or author) submits video-player content containing a crafted script payload that the plugin stores without proper output neutralization. When an administrator or other user later views the page or admin screen rendering that content, the script executes in their authenticated browser session, enabling session/cookie theft or actions performed as the victim. No public proof-of-concept exploit was referenced in the available data; exploitation requires both an attacker-held account and victim interaction per the AV:N/AC:L/PR:L/UI:R vector.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 09, 2026

Stored cross-site scripting (XSS) in the FolioVision FV Flowplayer Video Player plugin for WordPress, affecting all versions through 7.5.54.7212, lets an attacker with sufficient privileges to store content in the plugin (CVSS PR:L) inject JavaScript that later executes in the browser of a second user - typically an administrator or editor - who views the affected page or admin view (CVSS UI:R). Rated CVSS 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L, CWE-79), impact is confined to the victim's browser session rather than direct server compromise, and no public exploit code or confirmed active exploitation (CISA KEV) was identified at time of analysis. The report originates from Patchstack and the exact input field serving as the injection vector is not specified in the available advisory.

RemediationAI

No vendor-released patch version is identified in the available data - 7.5.54.7212 is listed as the last affected release, not a fixed one - so the primary action is to upgrade to the first FV Flowplayer Video Player release published after 7.5.54.7212 once it is available and verified against the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/fv-wordpress-flowplayer/vulnerability/wordpress-fv-flowplayer-video-player-plugin-7-5-54-7212-cross-site-scripting-xss-vulnerability?_s_id=cve); until then, treat the plugin as unpatched. Practical compensating controls: restrict who can create or edit content that flows into the plugin's stored fields, since exploitation requires an account with content-submission privileges (PR:L) - removing contributor/author roles from untrusted users shrinks the attack surface but degrades editorial workflows; deactivate and uninstall the plugin if its video-player functionality is not required, accepting the loss of embedded player features; and enforce a strict Content-Security-Policy (script-src without unsafe-inline) to blunt execution of stored payloads, recognizing that this can break legitimate third-party embeds and inline scripts elsewhere on the site. WAF filtering of plugin request parameters offers only partial protection because the payload is stored in the database and rendered later from a legitimate page load, so it does not reliably block delivery to the victim; note also that no public exploit code was identified at time of analysis, so broad opportunistic scanning is not indicated, but the stored nature of the flaw makes any future patch deployment time-sensitive.

Affected VersionsENISA

FV Flowplayer Video Player 0 ≤7.5.54.7212

Affected Packages

euvd fv_flowplayer_video_player no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The root cause class is CWE-79, improper neutralization of input during web page generation: the plugin accepts user-supplied content, persists it in the WordPress database, and later renders it into HTML without adequate output escaping or sanitization, so markup supplied by the attacker is interpreted as script by the victim's browser. The CPE string cpe:2.3:a:foliovision:fv_flowplayer_video_player:*:*:*:*:*:*:*:* identifies the FolioVision FV Flowplayer Video Player WordPress plugin as the affected component, spanning all versions up to and including 7.5.54.7212. The assessed vector scores S:C (scope changed) because the injected script executes in the origin of the hosting WordPress site rather than being contained within the vulnerable component, which means the payload can act with the victim's authenticated session - for example issuing privileged admin requests or exfiltrating page data - but it still depends on a stored payload plus a victim subsequently loading the affected page (UI:R). The advisory does not identify the specific parameter or field through which the malicious input is stored, and no authentication bypass is implied: the attacker must already hold a WordPress account able to submit content processed by the plugin (PR:L).

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Severity by source

Vendor (Patchstack) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
vuln.today AI 6.5 MEDIUM

Stored XSS requires an authenticated low-privilege account to inject (PR:L) and victim rendering (UI:R); script runs in another user's browser context, giving scope change and limited C/I/A impact.

3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
Low

DescriptionCVE.org

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 7.5.54.7212.

Threat Intelligence Overview

EPSS Score
0.1%
Top 98% exploitable
Prevalence
Medium
WordPress video-player plugin, moderately popular but not universally deployed
Social Media
1
Sightings
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

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The FV Flowplayer Video Player plugin for WordPress is vulnerable to time-based SQL Injection via the ‘exclude’ paramete

CVE-2023-25066 HIGH
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Cross-Site Request Forgery (CSRF) vulnerability in FolioVision FV Flowplayer Video Player plugin <= 7.5.30.7212 versions

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Stored cross-site scripting in the FV Flowplayer Video Player WordPress plugin (all versions up to and including 7.5.54.

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Authenticated (author or higher user role) SQL Injection (SQLi) vulnerability discovered in FV Flowplayer Video Player W

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Stored Cross-Site Scripting in the FV Flowplayer Video Player WordPress plugin (versions below 7.5.51.7212) allows low-p

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