CVE-2026-110531
Deferred Deferred - Pending Action

Stored XSS in FV Player WordPress Plugin

Publication date: 2026-11-14

Last updated on: 2026-11-14

Assigner: Wordfence

Description
The FV Player 8 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'fv_player_videos' parameter in all versions up to, and including, 8.1.9 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. This requires the administrator-controlled "Allow visitors to upload videos to their profile" setting to be enabled, without which the vulnerable save routine is inaccessible to Subscriber-level users.

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Meta Information

Published
2026-11-14
Last Modified
2026-11-14
Generated
2026-11-15
AI Q&A
2026-11-14
EPSS Evaluated
N/A
NVD
CVE-2026-110531
EUVD
EUVD-2026-125937

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
foliovision FV Player 8 From 0 (inc) to 8.1.9 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a Stored Cross-Site Scripting (XSS) vulnerability in the FV Player 8 WordPress plugin up to version 8.1.9. It allows authenticated attackers with subscriber-level access or higher to inject malicious scripts via the 'fv_player_videos' parameter. The attack requires the administrator-enabled setting 'Allow visitors to upload videos to their profile' to be active.

Detection Guidance

Check WordPress sites with FV Player 8 plugin versions up to 8.1.9 for unauthorized scripts in the 'fv_player_videos' parameter. Inspect user profile video uploads and comments for injected HTML/JavaScript. Review plugin files for the presence of the 'fv_player_comment_text_strip_html_attributes' function as a sign of patching.

Impact Analysis

An attacker could steal user sessions, redirect visitors to malicious sites, or deface your website. Since it's stored, the malicious script executes whenever a user accesses the infected page. The impact depends on user privileges and the site's configuration.

Compliance Impact

This vulnerability could lead to unauthorized data access or modification, violating GDPR's integrity and confidentiality principles. For HIPAA, it may expose protected health information if exploited. Compliance risks include data breaches and failure to protect user data.

Mitigation Strategies

Update FV Player 8 to the latest patched version immediately. Disable the 'Allow visitors to upload videos to their profile' setting if not required. Scan WordPress installations for suspicious scripts in user-generated content. Monitor for unauthorized admin changes to plugin settings.

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