CVE-2026-16337 PUBLISHED

Improper authorization in the ToolGroupResource and RoleAjax REST/DWR endpoints in dotCMS dotCMS 21.02 through 26.06.22-03 on all platforms allows a low-privileged authenticated backend user to self-assign the administrative layout and self-grant the CMS Administrator role, then achieve remote code execution via a crafted OSGi bundle upload whose BundleActivator executes arbitrary shell commands.

• https://github.com/dotCMS/core/pull/36344

• CWE-269: Improper Privilege Management CWE

• Successful exploitation allows a low-privileged authenticated backend user to escalate to the CMS Administrator role and subsequently achieve remote code execution by uploading a malicious OSGi bundle, resulting in complete compromise of confidentiality, integrity, and availability of the affected instance and any connected infrastructure.