23 Oct 2026 15:48:27 UTC
MaxSite CMS through 109.6 PHP Object Injection via ci_session
cve-program · CVE-2026-87930 · Published
CVE-2026-87930
MaxSite CMS through 109.6 PHP Object Injection via ci_session
CVSS 4.0 9.2 CRITICALCVSS 3.1 8.1 HIGHCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-87930
PublishedMaxSite 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.
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