CVE-2026-83526FV Player 8 <= 8.1.7 - Authenticated (Subscriber+) Arbitrary File Upload via videos[].fv_wp_flowplayer_field_src Parameter
Updated under an hour ago ()
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It affects foliovision FV Player 8. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.64%, higher than 50% of scored CVEs.
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The FV Player 8 plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 8.1.7 via the check_mimetype function. This is due to insufficient file type validation in check_mimetype(), which writes attacker-supplied remote file content to the public uploads directory before any MIME or extension check, combined with a missing capability check on new player creation. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. This requires successfully exploiting a race condition.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-434
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.64% (percentile 50)
- Assigned by
- Wordfence
- NVD analysis
- Deferred
- Record last updated
- Oct 11, 2026
- First seen by InfoSec Signals
- Oct 10, 2026
Affected products
foliovision FV Player 8 foliovision:fv_player_8 (from the name) | through 8.1.7 | CNA record |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5c75cb7b-1ebe-411c-8664-848d741e40d4?source=cve
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/checker.php#L105
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/checker.php#L148
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/checker.php#L181
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db.php#L46
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db.php#L1102
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db.php#L1173
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db-video.php#L855
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/controller/editor.php#L36
- https://plugins.trac.wordpress.org/browser/fv-player/trunk/controller/frontend.php#L1211
- https://github.com/foliovision/fv-wordpress-flowplayer/releases/tag/8.1.8
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.