Authorization Bypass Through User-Controlled Key

Overview concrete5/concrete5 is a concrete5 open source CMS. Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the exEntryID parameter in the Express Entry Detail block. An attacker can gain unauthorized access to all Express form submissions...

CVE-2026-3452

Concrete CMS below version 9.4.8 is vulnerable to Remote Code Execution by stored PHP object injection into the Express Entry List block via the columns parameter. An authenticated administrator can store attacker-controlled serialized data in block configuration fields that are later passed to...