CVE-2026-12135
Received Received - Intake

Stored Cross-Site Scripting in FV Flowplayer Video Player Plugin

Publication date: 2026-07-01

Last updated on: 2026-07-01

Assigner: Wordfence

Description
The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'video_player' shortcode 'align' attribute in all versions up to, and including, 7.5.51.7212 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

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Meta Information

Published
2026-07-01
Last Modified
2026-07-01
Generated
2026-07-01
AI Q&A
2026-07-01
EPSS Evaluated
N/A
NVD
CVE-2026-12135
EUVD
EUVD-2026-40899

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
fv_flowplayer video_player to 7.5.51.7212 (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

The FV Flowplayer Video Player plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in its 'video_player' shortcode 'align' attribute. This vulnerability exists in all versions up to and including 7.5.51.7212. It is caused by insufficient input sanitization and output escaping of user-supplied attributes.

Authenticated attackers with contributor-level access or higher can exploit this vulnerability to inject arbitrary web scripts into pages. These scripts will execute whenever any user accesses the injected page.

Impact Analysis

This vulnerability allows attackers with contributor-level access or above to inject malicious scripts into WordPress pages. When other users visit these pages, the injected scripts execute in their browsers.

  • It can lead to theft of user credentials or session tokens.
  • It can enable unauthorized actions on behalf of users.
  • It can compromise the integrity and trustworthiness of the affected website.
Compliance Impact

The vulnerability allows authenticated attackers with contributor-level access to inject arbitrary web scripts via stored cross-site scripting (XSS). This can lead to unauthorized access to user data or session hijacking, which may result in violations of data protection regulations such as GDPR or HIPAA that require safeguarding personal and sensitive information.

Specifically, the exploitation of this vulnerability could compromise the confidentiality and integrity of user data, potentially leading to non-compliance with standards that mandate secure handling of personal data and protection against unauthorized access.

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