CVE-2026-87930 — MaxSite CMS through 109.6 PHP Object Injection via ci_session
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…
Published: 2026-09-09 · CVSS: 9.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7