Vulnerabilidades de Dotcms

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.

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in the Publish Audit API endpoints (/api/auditPublishing/get and /api/auditPublishing/getAll) in dotCMS Core 25.11.04-1 through 26.04.28-02 allows remote unauthenticated attackers to read, modify, or destroy arbitrary database content. The endpoints did not enforce authentication and accepted unsanitized input used in dynamically constructed SQL. The fix in dotCMS Core 26.04.28-03 requires an authenticated backend user with the publishing-queue portlet permission. LTS releases are not affected as the vulnerable code path was never backported.

A sandbox escape vulnerability exists in dotCMS’s Velocity scripting engine (VTools) that allows authenticated users with scripting privileges to bypass class and package restrictions enforced by SecureUberspectorImpl. By dynamically modifying the Velocity engine’s runtime configuration and reinitializing its Uberspect, a malicious actor can remove the introspector.restrict.classes and introspector.restrict.packages protections. Once these restrictions are cleared, the attacker can access arbitrary Java classes, including java.lang.Runtime, and execute arbitrary system commands under the privileges of the application process (e.g. dotCMS or Tomcat user).

An issue was discovered in the ContentResource API in dotCMS 3.0 through 22.02. Attackers can craft a multipart form request to post a file whose filename is not initially sanitized. This allows directory traversal, in which the file is saved outside of the intended storage location. If anonymous content creation is enabled, this allows an unauthenticated attacker to upload an executable file, such as a .jsp file, that can lead to remote code execution.