CVE-2026-33647

CVE-2026-33647 · AVideo Vulnerable to Remote Code Execution via MIME/Extension Mismatch in ImageGallery File Upload

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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.

CVSS 8.8 · Высокий · EPSS 0,7%

Опубликовано

2026-03-23T18:23:20.079Z

Обновлено

2026-03-24T17:36:15.421Z

Стек: php

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