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CVE-2026-25923

Phar Deserialization leading to Arbitrary File Deletion in my little forum

概要

Phar Deserialization leading to Arbitrary File Deletion in my little forum

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

my little forum is a PHP and MySQL based internet forum that displays the messages in classical threaded view. Prior to 20260208.1, the application fails to filter the phar:// protocol in URL validation, allowing attackers to upload a malicious Phar Polyglot file (disguised as JPEG) via the image upload feature, trigger Phar deserialization through BBCode [img] tag processing, and exploit Smarty 4.1.0 POP chain to achieve arbitrary file deletion. This vulnerability is fixed in 20260208.1.

出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

参照URL

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