# CVE-2026-110531: FV Player 8 <= 8.1.9 - Authenticated (Subscriber+) Stored Cross-Site Scripting via 'Popup' Shortcode Attribute via Profile Video

Status: published. Published: 2026-11-14. Updated: 2026-11-14.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- foliovision / FV Player 8: ≥ 0; ≤ 8.1.9 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 6.4 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N; source: CNA: Wordfence

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/4d581f96-5a30-49f7-bddf-45dd581d7a24?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/fv-player/trunk/freedom-video-player/modules/overlay-popup.module.js#L95 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/fv-player-frontend.php#L1224 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/custom-videos.php#L115 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/custom-videos.php#L790 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/custom-videos.php#L757 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/email-subscription.php#L762 (CNA: Wordfence)

- https://github.com/foliovision/fv-wordpress-flowplayer/commit/1c936e8100989c34e08415adfcb5ea3db2109902 (CNA: Wordfence)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-110531; retrieved 2026-11-14; source updated 2026-11-14

Revision: 0989eaaec963abc7125fcf871528f5ff3877ceb6f7a52ab68116f43dc24d568e

Canonical: https://y2.dev/cve/CVE-2026-110531

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