cvedb.io
CVE-2026-33647
HIGH · CVSS 8.8
EPSS exploitation probability: 0%
Published 2026-03-23T19:16:40.750 · Last modified 2026-06-17T10:37:50.607

Summary

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `ImageGallery::saveFile()` method validates uploaded file content using `finfo` MIME type detection but derives the saved filename extension from the user-supplied original filename without an allowlist check. An attacker can upload a polyglot file (valid JPEG magic bytes followed by PHP code) with a `.php` extension. The MIME check passes, but the file is saved as an executable `.php` file in a web-accessible directory, achieving Remote Code Execution. Commit 345a8d3ece0ad1e1b71a704c1579cbf885d8f3ae contains a patch.

Affected products

wwbn — avideo

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.