CVE-2026-25923: My-Little-Forum mylittleforum, десериализация

Описание

Оригинално описание

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.

Засегнати продукти

• My-Little-Forum mylittleforum: < 20260208.1

Вид слабост

• CWE-434 Неограничено качване на файл от опасен тип
• CWE-502 Десериализация на ненадеждни данни

История

Други уязвимости в My-Little-Forum mylittleforum

• 8.8CVE-2025-62606

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-25923
• https://nvd.nist.gov/vuln/detail/CVE-2026-25923
• https://github.com/My-Little-Forum/mylittleforum/security/advisories/GHSA-wr9p-3c3g-78fw
• https://github.com/My-Little-Forum/mylittleforum/releases/tag/20260208.1