[CVE-2026-87930] MaxSite CMS through 109.6 passes the ci_session cookie to unserialize() without class restrictions, …

Descripción técnica

MaxSite CMS through 109.6 passes the ci_session cookie to unserialize() without class restrictions, allowing unauthenticated attackers to inject PHP objects. Attackers can forge valid session cookies using the hardcoded encryption key to trigger magic methods and corrupt application state or achieve code execution if gadget classes exist.

Puntuación CVSS

Score: 8.1/10 — Severidad: HIGH — Estado NIST: Received

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Debilidades (CWE)

CWE-502

Fuente oficial

Publicado en NIST NVD.