CVE-2026-86461: FV Flowplayer Video Player arbitrary file upload in check_mimetype

CVE-2026-86461 · Severity: high · CVSS 8.8 · Published 2026-10-14

The FV Flowplayer Video Player plugin for WordPress has a file upload vulnerability in its check_mimetype function that can be bypassed to upload executable files. Authenticated subscribers can exploit this to achieve remote code execution if the plugin's "profile videos on bio" feature is enabled, enabling attackers to execute arbitrary code on the website.

Technologies: FolioVision FV Flowplayer Video Player. Vendors: FolioVision.

Quick answers

Is CVE-2026-86461 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-86461 being exploited in the wild.
How severe is CVE-2026-86461?
High severity, with a CVSS score of 8.8, published 14 October 2026.
Which products and versions are affected?
FolioVision FV Flowplayer Video Player up to and including 7.5.54.7212.
Is there a fix for CVE-2026-86461?
No fixed version is recorded yet. Disable the plugin's "profile videos on bio" option to prevent subscribers from obtaining the required nonce for exploitation, though this does not address the underlying validation bypass.</anigation> </invoke> If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-86461 attacked?
It is attacked over the network.
Am I affected by CVE-2026-86461?
Check whether you run FolioVision FV Flowplayer Video Player at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Disable the plugin's "profile videos on bio" option to prevent subscribers from obtaining the required nonce for exploitation, though this does not address the underlying validation bypass.</anigation> </invoke>

Technical details

The check_mimetype function in the plugin performs incomplete file type validation, allowing extension-based checks to be bypassed without proper MIME type validation or use of WordPress upload helpers. Authenticated attackers with subscriber-level access can upload executable files when the "profile videos on bio" option is enabled, as this exposes the required nonce on the subscriber-accessible profile page. Remote code execution is possible once a malicious file is uploaded to the server.

Affected products

  • Foliovision FV Flowplayer Video Player up to and including 7.5.54.7212

Timeline

  • 2026-10-14: disclosed

References

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