Brave CMS Unrestricted File Upload Vulnerability in CKEditor Endpoint Allowing Remote Code Execution

A vulnerability allowing unrestricted file uploads has been identified in Brave CMS versions prior to 2.0.6. This issue arises in the CKEditor endpoint, where attackers can upload arbitrary files, including executable scripts. Such uploads may lead to remote code execution on the server, potentially causing a full system compromise, data exfiltration, or service disruption.

Impact

Exploitation of this vulnerability allows for remote code execution on the server, with the potential for full system compromise, data exfiltration, or service disruption.

Remediation

Users are advised to upgrade to Brave CMS version 2.0.6 or later. If an immediate upgrade is not possible, access to the CKEditor upload endpoint should be restricted, strict server-side file validation should be enforced, execution of uploaded files via server configuration should be disabled, and suspicious uploaded files should be monitored and removed.