{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-83526", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-08-31T16:16:13.303Z", "datePublished": "2026-10-10T05:30:58.064Z", "dateUpdated": "2026-10-10T05:30:58.064Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-10-10T05:30:58.064Z"}, "affected": [{"vendor": "foliovision", "product": "FV Player 8", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "8.1.7", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "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."}], "title": "FV Player 8 <= 8.1.7 - Authenticated (Subscriber+) Arbitrary File Upload via videos[].fv_wp_flowplayer_field_src Parameter", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5c75cb7b-1ebe-411c-8664-848d741e40d4?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/checker.php#L105"}, {"url": "https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/checker.php#L148"}, {"url": "https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/checker.php#L181"}, {"url": "https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db.php#L46"}, {"url": "https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db.php#L1102"}, {"url": "https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db.php#L1173"}, {"url": "https://plugins.trac.wordpress.org/browser/fv-player/trunk/models/db-video.php#L855"}, {"url": "https://plugins.trac.wordpress.org/browser/fv-player/trunk/controller/editor.php#L36"}, {"url": "https://plugins.trac.wordpress.org/browser/fv-player/trunk/controller/frontend.php#L1211"}, {"url": "https://github.com/foliovision/fv-wordpress-flowplayer/releases/tag/8.1.8"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-434 Unrestricted Upload of File with Dangerous Type", "cweId": "CWE-434", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "credits": [{"lang": "en", "type": "finder", "value": "Supakiad S. (m3ez)"}], "timeline": [{"time": "2026-09-02T15:44:33.000Z", "lang": "en", "value": "Vendor Notified"}, {"time": "2026-10-09T17:08:42.000Z", "lang": "en", "value": "Disclosed"}]}}}

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