CVE-2026-25923

Katalog CVE

CVSS 9.1 · Critical EPSS 0,73%

Kerentanan Unrestricted Upload of File with Dangerous Type pada mylittleforum my little forum. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

9 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

9.1 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-434: Unrestricted Upload of File with Dangerous Type
CWE-502: Deserialization of Untrusted Data

EPSS (30 hari)

0,73% peluang dieksploitasi; lebih tinggi dari 53,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/My-Little-Forum/mylittleforum/security/advisories/GHSA-wr9p-3c3g-78fw exploit · mitigasi · advisory vendor
• https://github.com/My-Little-Forum/mylittleforum/releases/tag/20260208.1 product · release notes