{"id":"CVE-2026-83526","state":"PUBLISHED","title":"FV Player 8 <= 8.1.7 - Authenticated (Subscriber+) Arbitrary File Upload via videos[].fv_wp_flowplayer_field_src Parameter","description":"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, and is only exploitable if the '[fvplayer_editor]' shortcode is present, or the \"Enable profile videos\" setting is enabled.","publishedAt":"2026-10-10T05:30:58.064Z","updatedAt":"2026-10-28T16:56:44.443Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Wordfence"},"assigner":"Wordfence","products":["foliovision FV Player 8"],"affected":[{"vendor":"foliovision","product":"FV Player 8","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"8.1.7","versionType":"semver"}]}],"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"],"weaknesses":["CWE-434"],"ingestedAt":"2026-10-29T20:13:15.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/83xxx/CVE-2026-83526.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-83526","state":"PUBLISHED","datePublished":"2026-10-10T05:30:58.064Z","dateUpdated":"2026-10-28T16:56:44.443Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-08-31T16:16:13.303Z"},"containers":{"cna":{"title":"FV Player 8 <= 8.1.7 - Authenticated (Subscriber+) Arbitrary File Upload via videos[].fv_wp_flowplayer_field_src Parameter","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. 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