CVE-2026-92247A security vulnerability has been detected in synaptikcms synaptik-cms up to 1.3.4.4. This affects the function rename of the file admin/file-manager.php of the component Admin File Manager. The manipulation leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 1.3.5 is able to mitigate this issue. It is suggested to upgrade the affected component.