Security Advisory

CVE-2026-25923

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-02-09 21:56:02

Last updated 2026-02-11 21:20:25

Assigner GitHub_M

State PUBLISHED

Description

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.

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